Blog Archives: WildWivenhoe

#WildWivenhoe Bug & Botany walks: a crisp winter’s day at the Naze

Britain's Wildlife, Bug & Botany Walks, WildWivenhoe

Having Walton-on-the-Naze on our doorstep is surely one of the delights of living in our part of Essex. And delightful it surely was on our Fossils and Birds walk on the coldest day of the year – sub-zero temperatures but in sparkling sunshine, we could see for miles out to sea, the still air  punctuated by only the lapping of the waves and the burbling of the Brent Geese one to another.

Standing on the beach looking at the cliffs, you really are looking back many millions of years in time. The whole area, a Site of Special Scientific Interest, is one of the finest geological sites in Britain, comprising layers of London Clay, topped by Red Crag.

The stunning redness of the Crag is due to oxidisation of the sand and shell layer laid down over 3 million years ago when Walton was, as now, at the edge of the sea, just prior to it being engulfed in the turmoil of the last Ice Age. Fossils of many kinds and shell debris can be readily be found on the beach, most stained an attractive red colour, distinguishing them from otherwise-identical modern shells.

A combination of the seeping of rainwater downwards, lubricating the clay surface, and storm wave pressures makes the whole area prone to landslips and substantial coastal erosion, which although exciting for geologists and fossil-hunters, nevertheless is extremely worrying for those with buildings atop the cliffs! One vulnerable structure is of course the famous Naze Tower, a 300 year old leaning landmark, built by Trinity House for navigational purposes and today a popular art-gallery and tea room.

Some years ago a local dispute raged as to what to do – completely surround the whole Naze with a sea defence?  Extremely expensive and would prevent geological discovery and the ‘production’ of sand which feeds our local seaside resorts. Or let the whole area eventually fall into the sea? A compromise was sought and about ten years ago an additional 170 metres of defence was built. Now known as the Crag Walk, this allows a safe walkway, and provides a chance to study the cliffs at close quarters, whilst learning about the geology and wildlife from interpretation boards. It also protects the area immediately below the tower.

And so to our beachcombing….many delights awaited the patient explorer, including a shark’s tooth spotted by Chris – probably 50 million year old and looking in pretty good nick! (the tooth that is!), from an inhabitant of the subtropical London Clay lagoon which then covered most of what is now Essex.

‘Boring piddocks’ Chris was heard to exclaim at one point….to whom or what was he referring? Turns out Piddocks, also known as Angels’ Wings, are attractive shells which bore vertically in the soft London Clay, making perfectly round holes as they do so. Equally modern are the Slipper Limpets accidentally introduced to our waters a century ago.

Other delights included ancient pyritised wood (turned to ironstone), and copperas nodules (which some suggest are fossilised poo or ‘coprolites’). Fifty million years old!

The left-hand coiling whelks Neptunia contraria are interesting as most gastropods coil in a dextral way; these left-handers from the warmer Red Crag seas can be dated at over two million year old. It’s hard to get your head round numbers like this!

Although quite slippery on the London Clay platform, areas of sand became more accessible as the tide receded and we were particularly struck by the beautiful dendritic drainage tree-shapes in the sand. 

In addition to the wonderful beach treasures, we were able to see and hear many birds who make that area their home…the ubiquitous Brent Geese, as well as  Herring and Black-headed Gulls. In addition entertaining us running up and down the beach were several Turnstones, Grey Plovers, Curlews and Sanderlings. On the cliffs, Rock Pipit and Robin, their singing suggesting they were migrants defending their winter territories, and overhead several small flocks of Siskins, also migrants, flew northwards.

A very enjoyable end to our 2021 season – thank you all. Fingers crossed we can go ahead with our 2022 programme as planned, as #WildWivenhoe Bug & Botany walks are rebranded as simply #WildEssex: we try to do the lot!

The grassland fungi of Wivenhoe’s New Cemetery

Britain's Wildlife, WildWivenhoe

We have always valued the grassland in Wivenhoe’s New Cemetery highly for its biodiversity. Created around the start of the 20th century, and on the gravelly soils that sit atop the Wivenhoe Ridge, the quality of the turf, undamaged by the pervasive modern scourges of pesticides or fertilizers, is apparent from the springy, diverse grasses, and abundance of interesting plants such as Mouse-eared Hawkweed and Field Scabious.

This autumn however, in common apparently with many other sites in southern England, other features have come to the fore: a remarkable range of interesting and often attractive grassland fungi.

From corals to clubs and puff-balls to waxcaps, the latter a kaleidoscope of colour from white to yellow, orange through to crimson, the show this year has been magnificent, indeed better than we have ever seen before. Which highlights one of the big conservation issues for grassland fungi, simply knowing where the best sites are, as the fungi produce fruiting bodies only very sporadically, sometimes not showing for several years at a time.

Now we know this site is of value for its fungi. And more important than we might at first appreciate: a national expert  commented to me when I posted the photos on Twitter ‘From the data I hold there are very few quality grassland fungi sites in Essex. So the cemetery & its grassland is very important as you obviously know’. Thanks to Wivenhoe Town Council for keeping it that way.

So where else in the area might be equally good? Well, any of our local grasslands, whether part of the ‘no mow, no sow’ enhancement project or not, have the potential. The only similar shows of grassland fungi I have ever seen round here were in Wivenhoe Park a couple of years ago, and the KGV back in 1987. Indeed it was memory of the latter showing that helped convince me the lower end of KGV would be good for our first foray into hay meadow management five years ago.

But, confounding my hopes and expectations a wander round KGV this year, while it did provide a few fungi, was certainly not exceptional. Just goes to show the unpredictable and evanescent nature of fungal fruiting, and why we should grasp all opportunities we can to record it, evidence for the protection that grassland fungi so desperately need.

The Wild Side of Essex: day walks of the Essex coast in November

Britain's Wildlife, WildWivenhoe

Two walks in November, as autumn gave way to winter.

Early in the month, our day on the Naze may have been in unremittingly dull conditions but the wildlife was excellent, starting with several hundred babbling Brents on the foreshore. Offshore, there were at least 40 plunge-diving Gannets (a good number for the Essex coast), with good views of a Mediterranean Gull and a passing Shag, while migrant Grey Wagtails, Starlings, Fieldfare, Brambling and Siskins flew in off the sea.

Along Stone Point, an array of feeding waders included Sanderlings, Ringed Plovers, Turnstones and Redshanks, and around 200 Bar-tailed Godwits. A Buzzard flapped along the beach, and a female Stonechat popped out of the coastal scrub.

Aside from birds, lingering summer delights included Hog’s Fennel and Sea Mayweed still in flower, and Cord-grass heavily infested with its own, large, rather scarce form of Ergot.

And always reliable, the internationally significant geology of London Clay and Red Crag, with attendant fossils indicative of the climate when each was laid down, and evidence of ancient volcanic ash clouds provided us with something interest right through to dusk.

At month’s end by the Colne Estuary, the weather could not have been more different: clear blue skies for much of the time, barely a breath of wind and really very mild.

A morning feast of waterbirds as the tide came in, with maybe 3kiloKnots, hundreds of godwits (both species), Avocets, Lapwings, Redshanks and Brent Geese…

And much more, from Teals and Wigeons, Little Egrets and Dabchicks, to bird of the day, a Red-throated Diver, rarely seen this far upriver.

Later on, Cutthroat Lane and Cockaynes Reserve had fewer birds, but some lovely autumn colours.

A few lingering flowers included Jersey Cudweed and Four-leaved Allseed on Wivenhoe Waterfront, and Lesser Calamint on the Essex Alps, while early rather than late was Butchers’-broom, normally coming into flower in the New Year.

And fungi included  Cordgrass Ergot (again), here with its even scarcer orange hyperparasite Gibberella), Birch Bracket and Fly Agaric, and a scattering of waxcaps right at the end of their season, given the forecast of first frosts to come….

The most sublime winter day of sunshine and still air, evocatively burnished with the gentle sound of falling leaves and burbling Brents!

#WildWivenhoe Bug & Botany Walks – autumn in Wivenhoe Park

Britain's Wildlife, Bug & Botany Walks, Uncategorized, WildWivenhoe

For those of us living in Wivenhoe, the University grounds (Wivenhoe Park) are a wonderful resource the year round, but never more so than in autumn with beautiful trees turning to russet and gold, and usually lots of fungi to discover.  This year the autumn is rather late in arriving, so many of the arboreal specimens are still in their summer coloration – but there was some evidence of a change in the Narrow-leaved Ash and the Norway Maples which were looking splendid on our morning walks in October.

As a demonstration of how the fires of autumn are either late, or subdued, this year, the photo below left shows the groundscape below Red Oak today; on the right are the leaves of the same tree exactly two years earlier. Different year, different weather conditions of the preceding summer, different colours…

So our walk, billed as ‘Fruits, Foliage and Fungi’ was rather lacking in dramatic foliage, and also fruits. Acorns, for example, were almost non-existent, in complete contrast to last autumn, a mast year, when the trees were laden with the fattest acorns imaginable, in huge numbers. Fortunately, for those of a gastronomic bent, the Sweet Chestnuts, at least from some trees, have fattened well.

But as for fungi,  the damp summer and warm autumn have produced a bumper crop. On our walks we are not able to identify all the species we find with confidence – even expert mycologists have been known to mis-identify with alarming and potentially fatal results.  So we stick to pointing out what we can and offer tentative or group identifications where we are able, but never to say definitively ‘this is edible’…!

A summary of what we saw, in pictures…..

Everyone’s favourite, from elves to toads to Father Christmas, the Fly Agaric was in profusion around one of the Silver Birch Trees:

Several other species in the genus Amanita were also found, including one which may prove to be our most interesting find when it grows up. At this early button stage it has all the appearance of the Solitary Amanita, a rare , southern species in the UK.

Under Beech and Oak trees, there was a variety of puffballs, earthballs, cheese-caps, penny-buns and lovely Amethyst Deceivers, at first almost invisible among the leaves, but seeming to emerge in troops as we got our eyes into searching:

And out in the more open grassland, again a great range of species, from Shaggy Ink-caps to Liberty Caps and Parasols, Yellow Clubs to waxcaps, all indicating the ecological quality of the extensive grasslands in Wivenhoe Park.

And then fungi growing on the old trees themselves, Beefsteaks and Sulphur-tufts recycling and hollowing, but not killing…

High in a large Oak. Chicken-of-the-Woods was fruiting…and as we peered skyward, a sharp pair of eyes spotted an anomalous set of leaves sprouting from a bough. It was a 2m tall Silver Birch sapling growing epiphytically from the Oak, the sort of thing we associate with rain forests, both temperate and tropical, but a surprise in the arid lands of north-east Essex.

In keeping with the ‘Bug’ bit of our walks, we kept an eye open for invertebrates – and were hoping that the Rhododendron leafhopper Graphocephala fennahi  would make an appearance. Spectacular and relatively large for its family Cicadellidae, this is one of only a few creatures which makes its home on Rhododendron.  A quick peer at the host plant indicated that there were none to be found today, but here is ‘one that we took earlier’ on our recce a day previously, a somewhat warmer day. Certainly worth a search next time you are near a suitable plant.

While we didn’t look in too much detail at galls this time, one that attracted our attention was these hairy little structures on Beech. These are the galls of the gall midge Hartigiola annulipes, which it seems is rather rare in Essex, with only seven previous records from the county shown on the Essex Field Club map. Another sharp pair of eyes spotted these little insects apparently coming out of the galls – as a mini-wasp, these are not the gall-causers, but likely a parasite thereof.

All those and more – Jackdaws and Green Woodpeckers as usual here flew the flag for the birds, along with a few Redwings ‘seep‘ing overhead, and one, maybe two, noisy Little Owls that unfortunately remained hidden.

For anyone looking to go back, the university has recently produced a second edition of its ‘Tree Guide’, well worth a look, and a visit to these grounds, at any time of year. To download a pdf of the guide, visit Wivenhoe Park | University of Essex, and follow the link.

Thank you to everyone who joined us and apologies to those who we had to turn away.  We like to keep our groups fairly small in number so that everyone can see and feel involved.  Apologies too that we unfortunately, inadvertently chose the Uni ‘Open day’ to arrange this event, so Chris had to compete with loud music and a helicopter overhead, but hopefully none of this got in the way of enjoying the nature!

 

An October week in #WildEssex

Beth Chatto Gardens, Britain's Wildlife, Cockaynes Reserve, WildWivenhoe

Honeyguide’s second #WildEssex week (the first being back in May – see here) saw north-east Essex largely cloaked in grey, with occasional heavy rain especially in the first two days. Despite the near absence of sunshine, a good time was had by all, the weather and wildlife both reflecting the turning of the seasons. Thanks as always to Wivenhoe House Hotel for accommodation and food in such glorious parkland surroundings, Beth Chatto Gardens and Essex Wildlife Trust for sites to visit and their visitor centres. And of course the wildlife of the area sends its thanks to participants: the conservation contribution will find its way to them via the good works of the EWT.

Monday afternoon 4 October

After checking-in at Wivenhoe House Hotel, a gentle potter around Wivenhoe Park introduced us to wonderful trees, young and old, some Pedunculate Oaks pre-dating the landscaping of the park in the mid-18th century, and a selection of specimens from almost all corners of the world. All three species of redwood, Turkey and Red Oaks (the latter sadly not yet really starting to light up with the fires of autumn), Deodar, Atlas Cedar and Cedar-of-Lebanon, fruiting Sweet-chestnuts, Strawberry-tree (in flower and last-year’s-fruit simultaneously) and in direct lineage from the Peninsular Wars, the two most venerable, gnarled Cork Oaks you are ever likely to see. As for the Magnolia grandiflora, it kicked off a week of botany using all the senses, its dinnerplate-sized flowers regaling their surroundings with the glorious scent of lemon cheesecake.

A few fungi were starting to appear on the older trees, including several emerging Beefsteaks and Chicken-of-the Woods …

… but insect life in the cool breeze was restricted to a few robber-flies and Rhododendron Leafhoppers.

Of course, the signs of insects were apparent, in the form of galls. The underside of many an oak leaf bore the galls of Common Spangle and Smooth Spangle galls, the larval homes of Neuroterus quercus-baccarum and N. albipes respectively.

Tuesday 5 October

For the only time in the week, it dawned clear and bright after very heavy overnight rain. As we splodged down through Wivenhoe Park, the sunlight shone its magic on the architecture (where Modernist meets Brutalism), several whinnying Dabchicks, and the trees alike.

Two species in particular seem to be fruiting well this year, Dog Rose and Hornbeam, in stark contrast to, for example, the oaks: irruptive Jays, which had just started arriving on our shores, are likely to find lean pickings this winter.

By the upper Colne, it was high tide and the only birds were Black-headed Gulls, Mallards and Teals, with Skylarks in semi-song over the fields. But the intense blue sky made up for avian deficiency, especially when counterpointing Silver Birches (with Birch Bracket fungi), the trunks in the photo having only just been vacated by a Great Spotted Woodpecker.

Between the spiky showers that developed in the afternoon, the woods were full of roving bands of tits and Treecreepers; Wivenhoe Quay had a bumper crop of Jersey Cudweed; a Hawthorn Shield-bug sunned itself on a fence post; and perhaps the most beautiful Hogweed umbel ever offered its resources to the diminishing hordes of pollinators.

The Walnut tree in Wivenhoe Churchyard had, as is usual, the large blister galls of the mite Aceria erinea, but more excitingly the small pimple galls of A. tristriata – when we first found this a few weeks ago and looked at the National Biodiversity Network maps, we found it has been identified and mapped only 11 times previously in the whole of the country.

But most exciting of all was something that was over in second, so fast there was no opportunity to photograph or intervene. A caterpillar was dangling in a silken thread from the tree canopy. As we looked close, we noticed a small parasitic wasp actually walking down the thread, and when it found the caterpillar, quick as a flash it stung it, presumably laying an egg or eggs, leaving the hapless larva to intense wriggling, its ‘not quite dead, yet!’ throes….

Wednesday 6 October

A day at the Naze, the most easterly point of Essex, a windswept headland, but still we persisted in cool, hefty, blustery north westerlies! Not surprisingly. any small birds in the scrub were keeping well out of reach of the blow, but surprisingly perhaps birds were arriving in off the sea, even against adverse winds. Meadow Pipits and Starlings were most numerous; the stars of the show were single Great Spotted Woodpecker and Short-eared Owl. Flocks of Swallows and House Martins, with a few Sand Martins, were drifting southwards all day.

Hog’s-fennel was just coming to the end of its flowering on the clifftop, Annual Sea-blite and samphires smearing the salt marshes with their autumnal tints, and Sea Rocket and Prickly Saltwort bringing life to the embryo dunes.

A Sea Aster Mining-bee stranded away from its food wasn’t going anywhere in the by now fearsome and cold wind, and another taste/smell opportunity arose with Golden-samphire and its ‘essence of shoe polish’.

On the shoreline, Turnstones, Ringed Plovers and Grey Plovers fed, although keeping low and out of the breeze, while offshore, a steady trickle of small flocks of Brent Geese, Teals and Wigeons flew by, with a few more highlights in the form of noisy Sandwich Terns, a close-in Red-throated Diver and an immature Gannet.

Walking back along the shore, of course the internationally significant geology took centre stage, London Clay and Red Crag cliffs, full of fossils and other clues to the environments of the times they were laid down, with the skeletons of last winter’s erosion a stark reminder of constant change in the natural world.

As we emerged back on to the clifftop, right at the end of the day, we found the wind had indeed dropped as forecast, and the only hint of sunshine for the day brought out a basking Red Admiral.

Thursday 7 October

Our final full day, calm and mild but unremittingly grey, took us further down the Colne Estuary, from Wivenhoe to Alresford Creek, then back along the high route on the ridge of the Essex Alps, taking in the very well-restored (for wildlife) gravel pits at Cockaynes Reserve.

Wivenhoe waterfront, attractive, arty and historic, also harbours plenty of botanical interest, from White Ramping-fumitory to the nationally rare Four-leaved Allseed (like the Jersey Cudweed a couple of days earlier, eking out a living in the cracks of block-paving, in those few spots where it is able to evade the incessant rain of Roundup). Heading out on the sea wall, upper salt marsh specialists included Strawberry Clover and the pungently scented Sea Wormwood.

Bird numbers increased as we headed downstream against a rising tide which concentrated the Redshanks, Black-tailed Godwits and especially Avocets into flocks, the latter reaching an impressive 150 or so birds. A Kestrel hunted along the sea wall, while a Buzzard ran the gauntlet of the local corvids, and Meadow Pipits and a Song Thrush migrated overhead.

The saltmarshes, bedecked in autumn tints, included patches of salmon-pink, rather uncommon, Perennial Glasswort, with Common Cord-grass still in full bloom.

Poking from many a Cord-grass flower spike were the fruiting bodies of the parasitic Cord-grass Ergot, itself being hyperparasitized by the orange fungus Gibberella (‘Big Fleas have Little Fleas etc ….’!). The Cord-grass strain of Ergot is much larger and protuberant than the more normal form which infects grain crops and other  grasses, as we had seen earlier in ornamental Lyme-grass around the car park.

Other fungi included the always dramatic Fly Agarics underneath (and intimately associated with) the Silver Birches of Grange Wood.

Returning homeward along the crest of the Essex Alps, one characteristic plant of the gravelly soils was the local speciality Lesser Calamint, its crushed leaves a delightful mix of mint and citrus, with a fleeting medicinal top note. Along the ancient trackway of Cut-throat Lane, Butcher’s-broom was remarkably already in flower. Or should that be ‘still’ ? – the books say it flowers from February to May…

Close scrutiny of the undersides of Oak leaves al last revealed examples of the beautiful Silk-button gall, the third of the common three Oak spangle-galls of the week. Sycamore leaves had the microfungal splotches of Tar-spot, and dead Elms, the tell-tale signs of the bark-beetle that proved their nemesis by introducing Dutch Elm Disease fungus, while larger fungi included some impressive Parasols.

Cockaynes Reserve produced its usual crop of diverse wildlife, a very wide range reflecting the mosaic of post-gravel extraction habitats, including ancient woods, scrub, heathland and wetland: Maze-gill, Reindeer Moss, Blue Fleabane, Chicory, Angle Shades moth, Green Shield-bug, Birch-catkin Bug and several impressive Robin’s Pincushion galls on Dog-roses.

Friday morning 8 October

After checking out, we reassembled on the final morning at the renowned Beth Chatto Gardens, just a couple of miles down the road. Beth was an early advocate of sustainable and ecological planting, the right plant in the right place, and the garden reflects that. Full of interest for the gardener with an eye to the future, it is also full of wildlife, albeit a little suppressed today by the misty, moisty veil of autumn.

Insect life was really focused upon the late nectar/pollen sources, with Red Admirals on the Michaelmas-daisies and Hornets, hoverflies and Honeybees on the Ivy flowers; otherwise it was a few Dock Bugs along with a closely related Box Bug, the latter a relatively new arrival in these parts. A final example of one of the pervasive themes of the holiday, the flux and flows of Nature, both natural and in response to our mismanagement of the planet, that both raise concerns about ‘the now’ while offering hope for the future.

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So, all in all a very good week, and let’s hope that it will not be the last. One week, with 25 kilometres of walking and only 50 driving – a feast of wildlife on my doorstep and it was a pleasure to share it with Honeyguide Wildlife Holidays. A listing of most the interesting wildlife we saw or heard during the week is available as a pdf, OCTOBER REPORT LIST.

The Wild Side of Beth Chatto Gardens: September – autumn approaches

Beth Chatto Gardens, Britain's Wildlife, WildWivenhoe

A mixed month, demonstrating the turmoil of seasonal change, September produced several days of  glorious summer sunlight, interspersed with cooler days and sometimes cold nights, and for the first three weeks at least, a near absence of rain. All very typical, and as one would expect, the garden is now burgeoning with seeds and fruits, as increasingly the foliage bronzes…

While fruits are of considerable value to visiting wildlife, the late-flowering nectar and pollen sources are of equal importance, especially to insects putting on a last breeding push or laying down resources for a winter of inactivity. In our ‘Twelve-month menu for wildlife’ some of the star players are shown here, from  Red-hot Pokers, Colchicums and Persicarias, to the pincushion heads of Succisella, the latter especially  heaving with bees and butterflies.

Commas and Red Admirals have been everywhere, with in mid-month at least several Painted Ladies and a Brown Argus, the latter seemingly not too common in north-east Essex this summer:

Common Darters and Migrant Hawkers have been very numerous around the ponds on warmer days,  and at last (they are late emerging this year), lots of Willow Emeralds, a newish species to these shores, but now one which has become a fixture of the warm autumnal scene.

This month has seen a huge emergence of crane-flies (much to the delight of family parties of Starlings), with hoverflies and robber-flies showing well too.

And our very best insect of the month, a Juniper Shield-bug: once rare in Britain on native Junipers, this is now spreading on garden relatives. But this individual may be only the second ever record from north east Essex, following one we found in May in the nearby Wivenhoe Park. There are always surprises to be found!

The Beth Chatto Gardens as summer starts to fade…

Beth Chatto Gardens, Britain's Wildlife, WildWivenhoe

It was a case, as much of the summer has been, of dodging the showers, but the bright but overcast weather at Beth Chatto Gardens presented wonderful opportunities for photography, unhindered by the sharp contrasts so often present when the sun shines, bleeding colour from the scene. This time no commentary, just images of one of our favourite places.

Colourscapes

Fruitscapes

Greenscapes

Wildscapes

Leafscapes 

Innerscapes

The Wild Side of Essex: day walks on the Colne Estuary in August

Britain's Wildlife, Cockaynes Reserve, WildWivenhoe

Two walks this month, one at either end of the period, marked the transition from midsummer to the approach of autumn. Both were in lovely warm, largely sunny, weather and there was plenty to keep the two groups interested. As always a mix of everything featured on the ambles, from birds to insects to geology to social history of this lovely part of north-east Essex.

Bird numbers on the estuary have built during the month, especially the returning waders from northern climes, many still in full breeding plumage at least at the start of the month. Black-tailed Godwits built from 20 to 400, Avocets from 40 to 80, along with growing numbers of Curlew and Redshank, and a few Turnstones, Lapwings and Greenshanks.

On the saltmarshes, Sea-lavender has peaked while Golden Samphire picked up the flowery baton, and will shortly be passing that on to Sea Aster. All are great places to look for nectaring butterflies and other insects.

Other saltmarsh and sea wall specialists flowering well included Greater Sea-spurrey, Crow Garlic, Common Toadflax and Strawberry Clover, the latter localised to those spots that the furthest tendrils of the tide just reach.

Along Wivenhoe Waterfront, the two botanical highlights of Jersey Cudweed and Four-leaved Allseed flowered throughout the month, albeit overshadowed by the ‘Second Spring’ of Tamarisk.

Some other botanical highlights included Duke-of-Argyll’s Tea-tree and Tansy, both a magnet for hoverflies and bees…

…together with the flowering glories of the dry, skeletal soils of the Essex Alps: Lesser Calamint, Blue Fleabane, Trailing St John’s Wort, and our precious patch of Heather.

As far as insects are concerned, Purple Hairstreaks were still on the wing at the start of August, while by the end of the month, new brood emergences of Speckled Wood and Red Admiral were apparent. The latter were especially a feature of the few Buddleias in the Cockaynes Reserve, with sometimes twenty to a bush, along with similarly pristine Small Tortoiseshells, Commas and Painted Ladies, and the last few tattered Meadow Browns and Gatekeepers.

The caterpillars of Cinnabar and Buff-tip, ripe for pupation, were in evidence, along with many other insects, from robber-flies to jewel-wasps.

And as always at this time of year, dragonflies have been abundant. Common and Ruddy Darters and Migrant Hawkers predominated, but they also included Brown, Southern and Southern Migrant Hawkers, especially around Cockaynes.

While Yellowhammers were still singing for our first walk, the second was within silent woods, save for the plaintive autumn cadence of Robins just starting up.

Highlighting the turn of the season, Sweet Chestnuts are fattening, Heather blooms are fading, fungi are sprouting and galls forming on oak leaves and rose bushes….

And it is to galls we turn for the highlight of the month. The large Walnut in St Mary’s Churchyard has long featured the lumpy, brain-like pouches of the common gall mite Aceria erinea, but this year it features alongside the smaller, redder and rarer galls of Aceria tristriata. On consulting WildGuides’ Britain’s Plant Galls, it ‘seems to be of very local occurrence’, and according to the NBN there are only 11 previous UK records, the nearest being in the vicinity of Norwich, Peterborough and Oxford. Always a surprise in store with @Naturetrektours in #WildWivenhoe!

 

The Wild Side of Essex: day walks on the Essex Coast in July

Britain's Wildlife, Cockaynes Reserve, WildWivenhoe

The Wild Side of Essex returned to the north of the county in July, with one walk each on the Colne Estuary and at the Naze. As has been customary this ‘summer’, the weather was a mixed bag, but the wildlife still performed admirably…

Our day on the Colne early in the month, ostensibly midsummer, was unseasonably windy, sometimes cool, sometimes humid, and often rainy…all in all, quite challenging conditions for wildlife-watching. Even the birds seemed to think it was autumn, with a hundred or so Icelandic Black-tailed Godwits (most in good russet plumage, and presumably failed breeders), and smaller numbers of Curlews and Redshanks.

The first fledgling Black-headed Gulls were out and about, and we got great views of Reed Bunting, Stock Dove and Song Thrush in sheltered spots. Common Terns were actively commuting overhead, taking fish they had caught on the estuary inland to their gravel pit breeding sites, and there were lots of Swifts hawking over both Shipyard and Church, as the sound of a barking Muntjac drifted over from the far side of the estuary on the stiff southerly wind.

The saltmarshes bloomed with Sea-lavender, Sea-purslane and Sea Beet, along with Cord Grass, Sea Plantain, Dittander and Golden Samphire.

Other exciting plants included Jersey Cudweed and Four-leaved Allseed on Wivenhoe Quay alongside beautiful patches of Mexican Fleabane, and Nodding Thistle, Wood Sage and Hoary Cinquefoil on the top of the Essex Alps, where Sweet Chestnut flowers were just emerging, filling the air with their mushroomy scent.

And even though insect activity was suppressed (Essex Skipper, Painted Lady, Emperor Dragonfly, Silver Y and Black-tailed Skimmer being the best), there were plenty of other things to see such as galls, leaf mines and fungi, albeit speaking more of autumn than summer!

The late-month Naze walk was altogether more summery (albeit grey at first), becoming but hot and sunny and eventually very humid. Always predictable of course is the fascinating geology, whatever the season, whatever the weather…

Many of the birds were distinctly sandy – summer-plumaged Sanderlings by the water’s edge (with a few Dunlins, Turnstones and Ringed Plovers); Sand Martins breeding in the cliffs; and Sandwich Terns roosting on the beach.
A wide range of flowers attracted our attention, from the common (but beautiful in full bloom) Spear Thistle and Common Fleabane to the scarcer specialities Golden Samphire, Corky-fruited Water-dropwort and Hog’s Fennel.
Stone Point was beginning to look especially flowery, the low dunes with Sea Rocket, Sea Mayweed, Prickly Saltwort and Sea Spurge, while a small proportion of the flowering Marram clumps was infected with Ergot.
Common insects were in abundance …
…while insect stars included the beautiful pink form of Meadow Grasshopper, a large (and fortunately quiescent) Saltmarsh Horsefly, and a tenacious Bee-wolf humping around its unfortunate prey, trying to locate its nest.
Something for everyone with @naturetrektours!

The Wild Side of Beth Chatto Gardens: High Summer

Beth Chatto Gardens, Britain's Wildlife, WildWivenhoe

At times, July has given us a real summer, albeit with quite some fluctuation, a mix of cooler days and very hot spells averaging towards the norm. The rain of the previous months ensured that the garden remained verdantly lush at a time when in previous drought years parts would have been getting frazzled at the edges.

Star plants for insects in the garden were many and varied, but particular note must be made of Euphorbia, Pimpinella, Veronicastrum, Thymus and Eryngium, all of which were punching well above their weight at some times of the month.

It was especially reassuring to see the emergence (or maybe arrival, following immigration) of hoverflies from mid-month. Part of the army of gardeners’ helpers, feeding for example on aphids, they are a sign of good ecological health, even if Marmalade Hoverflies predominated.

Of the other showy insect groups, butterflies were relatively few and far between, especially early in July, although it was good to see some apparent recovery (from parasite attack) of Small Tortoiseshell numbers, and by the month’s end, a good emergence of Purple Hairstreaks.

In contrast, damselflies were everywhere and abundant, with dragonflies likewise on the warmer days.

But at this time of year, the showy creatures are only the tip of the iceberg. Here’s a selection from throughout the month, ranging from egg-sac-carrying Wolf Spiders to the tiny, beautiful and scarce micro-moth Esperia oliviella.

 

Among the insects it is always good to see those that might traditionally be considered garden foes, especially those that eat and disfigure the plants we value. Ok, some are more attractive than others (Mullein Moth being much more charismatic than Solomon’s Seal Sawfly for instance), but every one is somebody else’s food, and their presence in the garden is as good a sign as any of the ecologically-centred ethos by which it is managed. I’ll have holes in my Verbascums, just give me the birds and the bees (and moths and sawflies) please…as Joni Mitchell might have sung.

One aspect of garden biodiversity that is often overlooked is moths, the night-fliers in particular. In mid-month however, we were able to run a moth-trap before a course we were running on Get to know your Garden Invertebrates. The vibrant night-life was very apparent the next morning, with Buff-tips, Rosy Footman and Privet Hawk-moths among the favourites.

And finally a peek at our new acid-grassland hay-meadow on the former overflow car park. Again helped by the rainy spring, this has turned into a wonderful mosaic of grasses and herbs, all of which have been just waiting for the management to be relaxed. I will return to this in a blog later in the year, but do take the opportunity now to see its first flowering.

Do visit the website and book a visit: gardener or naturalist, you will not be disappointed. And keep an eye on the events calendar as we will aim to run the Garden Invertebrates course again as soon as there is the demand. Beth Chatto’s Plants and Gardens

 

Going Wilder in Wivenhoe

Britain's Wildlife, WildWivenhoe

#WildWivenhoe just got a lot wilder. This spring saw the start of an exciting experiment in urban rewilding, to allow the grasslands of some of our recreation areas and estate road verges to grow and flower under an autumn-cut hay regime. Spearheaded by Wivenhoe Town Council, with Mark Halladay, Cllr Glyn Evans and a band of enthusiastic volunteers. this excellent initiative importantly encompasses grassland that is managed by other bodies, notably Colchester Borough Council.

Four months down the line since the first non-cut, we visited many of the areas in high summer to see how they are coming along. This is not a scientific survey by any means – the volunteers are doing that – but more of an ecological overview to see how they are developing as a resource for wildlife, and a visual feature hopefully enhancing the day-to-day life of the whole community.

Of course some are more successful than others. Take the smallest, the Co-op Triangle: this is heavily trampled, used as an outdoor sales area, and subject to frequent ‘inputs’ – the abundance of Wall Barley and Common Mallow is very typical of the ‘dog-wee grass community’.

But it is still important. Wildlife is there, a mini-wilderness ekeing out a living surrounded by concrete; green is coming up and flowering in peoples’ lives; and importantly, people are using it – the other aspects of the junction have show gardens, admittedly beautiful and wildlife-friendly, but most definitely ‘look, don’t touch’.

All the estate verges in this scheme similarly have wildlife bursting through the previously over-manicured grassland, nature improvement areas which challenge the British obsession with sterile green grass, scalped to within a sliver of its life, and unsullied by ‘weeds’ (aka beautiful wild flowers that support all sorts of insect life), for example:

Frances, Grasby and Cracknell Closes

Ernest Road

and De Vere Lane.

All have colour and wildlife; all could be seem by some to be ‘untidy: these spots will be the test of public acceptability. Or perhaps seen as Natures’s  advertisement for the rewards of letting life into our lives, and create the demand for more and more each year…

In the the larger, off-road areas, those rewards are even more apparent, teeming with butterflies, damselflies, hoverflies and all manner of insects. Off Bobbits Way, the steeply sloping grassy enclave has shown us why it escaped the houses when the estate was developed…it has sprung a spring, presumably where the gravel cap meets the London Clay, and formed a perfect rush-filled mini-marsh. Last year with so much less rain, this was not at all obvious.

Nearby, Millfield Common is large enough to be divided into two, one to be hay mown, the other periodically mown through the summer but not as tightly as in the past. And that diversity of management is paying off – the mown area with numerous flowering yellow composites, the hay area white with Yarrow, and all attracting insects.

On the very top of the Essex Alps, sandy grassland predominates, and nowhere better than at the Henrietta Close Recreation Ground. Last year, with Covid disruption to the mowing, we got a hint of its potential; this year it is simply stunning, a mosaic of grass and flowers, adorned with insects, and with access paths mown through it for those who don’t wish to explore the delights of the wild between their toes.

Finally we come to the King George V field. The fringes of the field have now largely been adopted into a hay regime, and they are all looking good…

… although not (yet) perhaps as good as our previous rewilding experiment further down the field.  That has had three more years to develop, and is now entrenched as a key part of Wivenhoe’s biodiversity, a place for plants, insects and people, where the key message is ‘Please do NOT keep off the grass’.

And in the fullness of time, surely each of these has the potential to match the insect haven the other side of Wivenhoe Wood: Lower Lodge. This has had a 15 year head start on the rest, but is a fantastic example of how, if management constraints are lifted, the wildlife will respond, and we all will benefit.

This is not about rarities. Note that I haven’t even mentioned most of the species in and around these grassy patches. Yes, some scarce plants have indeed responded to the new management regime, with some areas hosting for example Knotted Clover and Dittander.

No, it is not about rarity, it is about bioabundance. Each of the flowers in the photos above, indeed each of the flowers that has graced these areas over the summer has the power to bring joy into the heart. Every single one attracts insects, the tiny things that run the planet. Quite apart from what they do for pollination, all are also food for something else. Such bioabundance builds up food webs and resilient ecosystems: bit by bit, step by step, what we do in Wivenhoe and elsewhere will help change the world for the better.

Thanks to Mark and everyone else involved for pointing and persuading us in the right direction….

#WildWivenhoe Bug & Botany Walks: Lower Lodge

Britain's Wildlife, Bug & Botany Walks, WildWivenhoe

Having cancelled our Saturday outing, Monday dawned very wet and grey, and we wondered if we should have pulled the plug on that too, but in the end we were very glad that we didn’t – the humidity and warmth certainly brought out the insects in Lower Lodge.

This site is one of our favourites – managed very much for wildlife – areas being left for various lengths of time to grow, and then cut to avoid any turning back into woodland. We will let the photos speak for themselves –  though a couple of particularly interesting creatures (Roesel’s Bush-cricket and Emperor Dragonfly) spotted by members of the group didn’t hang around long enough to be snapped, so you will have to take our word for it!!

Skippers in their hundreds – mainly Essex (dark smudge at end of their antennae), but some Small (orange tips). Other butterflies included Meadow Browns, Ringlets, Gatekeepers, Large Whites, and just as we were leaving a pristine Red Admiral and Comma.

Moths including several types of grass moth and plume moth, a Common Carpet, Silver Y and Scabious Longhorns. Unfortunately the Burnet moths were not yet out but we did see a couple of egg cases, so we are confident that there will be some before long.

Beetles including several types of Ladybird  – 7 spot, 22 spot, 24 spot and a number of types of Harlequins, Thick-thighed Beetles, Hogweed Bonkers, a Yellow and Black Longhorn beetle plus a profusion of leaf beetles munching their way through a Hogweed leaf.

Plant bugs including  the reddish grass bugs Leptopterna ferrugata and Deraeocoris ruber, the beautiful planthopper Allygus mixtus  and the only shieldbug of the day, a Hairy Shieldbug.

Flies including ‘Dolly’ flies which wave their wings to signal to each other, a Saltmarsh Horsefly, which we rarely see and Nationally Scarce, plus lots of Marmalade Hoverflies and a few other hoverflies including the Large Pied, a smaller bee mimic Cheilosia illustrata, and Scaeva pyrastri.

And from other orders of insects, there were Speckled Bush-crickets and a particularly fine ichneumon (parasitic) wasp.

Plants were looking good – as high as an elephant’s eye almost, thanks to all the rain we have had. Particularly good-lookers include the Field Scabious, Bird’s-foot-trefoil, Hedge Bedstraw, Lady’s Bedstraw and Goat’s-beard. Also, never forget to look deep into the familiar: at close quarters, even Hogweed is a thing of beauty.

And always good to see, fungal Fairy Fingers erupting from the turf.

Thanks to you all who took a risk with the weather – hope that you enjoyed the experience as much as we did. Hope to see you in August.