Category Archives: Natural History

Warm, Sunny, Eutrophicated

Eutrophicated lake at Wraysbury
Eutrophicated lake at Wraysbury

The usually clear lake was covered in thick green patches of weed, enough for Coots to be able to walk on.

Radical path clearance
Radical path clearance

The path, too, looked rather different, with many of the large creaky poplars cut down leaving a wide unfamiliar swath of bulldozed path. The poplars constantly drop branches and fall over so it was about time.

Green-Veined White
Green-Veined White on Stinging Nettle

There were not many insects about – Emperor Dragonfly, Migrant Hawker, Common Blue Damselfly (with the ace-of-spades on segment 1 of the abdomen), Green-Veined White, a few Speckled Wood was about it.

Himalayan Balsam
Himalayan Balsam

I don’t recall seeing much of that troublesome weed of nature reserves, the Himalayan Balsam, but it was evident in cleared areas. Shame it’s a nuisance, as it’s rather a beautiful plant.

Fox poo with cherry stones
Someone’s been eating Cherries…
Agrimony in flower and burrs

Warm September weather usually means no migrants as they all settle down to enjoy the last bit of summer before moving. I heard a Cetti’s Warbler and a brief unseasonal burst of Chiffchaff song; I think I glimpsed a Blackcap diving from a patch of Teasels back to its bush. A few Jays shrieked and flapped butterfly-like across the horse pasture. A lone Kestrel flew lazily to perch in a tree. On the water, not much apart from Coots, a Mute Swan, Mallard, a family of Egyptian Geese, some Cormorants (quite a few of them with a lot of white on their fronts).

An Apple tree glowed with nice ripe fruit; someone had beaten a path under it to do a little picking.

Written in Nature’s Book

St Paul's Cathedral from the Globe
St Paul’s Cathedral from the Globe

London does look beautiful at night when seen across the river, whether you look at the classical outlines of St Paul’s Cathedral – not the one that Shakespeare knew, of course – or at the brash towers of the City, the slick take-your-money confidence of quick men who know all the patter and have the steel, glass and concrete to prove it.

All the World's a Stage (Globe Theatre set for As You Like It)
All the World’s a Stage (Globe Theatre set for As You Like It)

Everyone knows Shakespeare’s “All the world’s a stage” speech from As You Like It, and when that appears on stage as it did yesterday, it’s striking to see how well the strutting and fretting of the actors can work on that big wooden rectangle “in the round”, surrounded by the beautifully reconstructed circle of the Globe Theatre with the long-suffering audience standing in the pit. As you can see, we decided on the more comfortable course of seats in the upper gallery, affording a fine view of the pit audience reaction as the actors come right up to them, sit with legs dangling over the edge of the stage, walk round behind them, or actually push straight through the crowd.

But perhaps the Nature’s Book aspect of As You Like It is not so obvious:

Sweet are the uses of adversity,
Which, like the toad, ugly and venomous,
Wears yet a precious jewel in his head;
And this our life exempt from public haunt
Finds tongues in trees, books in the running brooks,
Sermons in stones and good in every thing.
I would not change it.

Nature speaks to the (banished) duke in the Forest of Arden (Act II, Scene 1): the trees talk, the brooks babble as if reading, the stones deliver sermons. Here is the voice of Nature with a capital N, “the classroom, the library, and the church“, figured if not quite personified as pastoral wisdom.

In Shakespeare’s time, the Book of Nature was a “theological commonplace” (Paul J. Willis; JSTOR, library or subscription needed). The curious concept of nature more or less literally as a book

‘”originated in pulpit eloquence, was then adopted by medieval mystico-philosophical speculation, and finally passed into common usage,” where it was “frequently secularized”‘.

Nature is described as good in Genesis chapter 1, and Saint Paul’s Epistle to the Romans argues that God’s power is seen by the creation of the world and in his works. Willis observes that this is a bit difficult to reconcile with Paul’s assertion that nature is utterly fallen and sinful, but no matter. Willis concludes by noting the “often recurring comment” that As You Like It mocks the pastoral while basically enjoying the pastoral quality, and suggests that Shakespeare similarly mocks the rather lofty Book of Nature theme “without tossing it aside”. The comedy comes from realizing that the forest is an imperfect divine text, just as we are “faulty readers” of that book. “The result in this rich comedy is the book of nature as you like it, a forest that exposes both God and man.”

Front cover
My take on the English view of Nature

Having written a book on the English view of Nature, I find Willis’s analysis – and Shakespeare’s treatment – extraordinarily good.

Wasp Spider arrives in Gunnersbury Triangle

Wasp Spider, the first we've seen in Gunnersbury Triangle
Wasp Spider, the first we’ve seen in Gunnersbury Triangle

Right in front of Mike the new conservation officer was a Wasp Spider. Of course, arriving late after working on scenarios for the new hut, I noticed it – her – before he did. The species only arrived in Britain about 15 years ago, and it’s certainly spreading.

Dark ants in anthill meadow
Dark ants in anthill meadow

Anthill ants are supposed to be minute, yellow, and never appear above ground. If so, these weren’t them. While we were digging brambles out of the anthill meadow, as gently as possible because the anthills are said to be one of the best features of the reserve, we couldn’t help disturbing some nesting ants a little. They seem to be black with grey abdomens; and as you can see, they quickly picked up their white cocoons and carried them off to safety. They certainly look as if they’re the owners of the anthills, but since the anthills are supposed to have been made by little yellow ants, perhaps the black-and-grey ones are just enjoying the resulting environment.

Grasshopper
Grasshopper

Several inch-long grasshoppers took a look at us.

Monadhliath Mountains

Ambre, Roy and Noggin setting out into the mountains
Ambre, Roy and Noggin setting out into the mountains
Rhacomitrium heath on the Monadhliath Mountains
Rhacomitrium heath on the Monadhliath Mountains
Sphagnum rubrum
Rhacomitrium heath on the Monadhliath Mountains
Alpine Lady's Mantle
Alpine Lady’s Mantle
A Moss - green and red Sphagnum in a peat hag
A Moss – green and red Sphagnum in a peat hag
Northern Spinach Moth Eulithis populata (FP Bilberry)
Northern Spinach Moth Eulithis populata (FP Bilberry)
Pupating Emperor Moth Caterpillar Saturnia pavonia
Pupating Emperor Moth Caterpillar Saturnia pavonia

I was lucky enough to catch an Emperor Moth caterpillar in the act of preparing to pupate; the full-grown caterpillar with its hairy aposematic yellow-green body marked with black is tied on to the grass stems with a hundred silken threads.

Glorious lichened rock on summit
Glorious lichened rock on summit

On the summit ridge, this flat rock was covered with magnificently coloured lichens in shades of orange, yellow ochre, grey and white, with black, grey, brown or burgundy apothecia.

Herd of Red Deer on Sunlit Skyline
Herd of Red Deer on Sunlit Skyline

Towards the end of the eight-and-a-half-hour walk with the sun westering low over the hills, we caught sight of a herd of 32 hinds. The little Nikon captured this nice shot of them, all peering down at us from the skyline.

Creag Meagaidh NNR

Regenerating Birch forest at Craig Meagaidh NNR
Regenerating Birch forest at Creag Meagaidh NNR

After a morning sheltering inside from the pouring rain, it cleared and I drove down to Creag Meagaidh, the enormous national nature reserve that fills a watershed from Loch Laggan up to the named mountain. The sun shone nearly all the time despite billows of cloud to the south. The hills were blue, setting off the shining grey-green of the birches, the russet of the heather – the Ling just coming into bloom now – and the bright yellow-green of the mossy grass.

Trailing Beards of Lichen, mostly Usnea with some Ramalina
Trailing Beards of Lichen, mostly Usnea with some Ramalina; the flatter leafy lichens are species of Parmelia

The Downy Birch is a stockier tree than the Silver Birch, tough enough to survive mountain winters, and home to a rich variety of lichens including Usnea beard lichens, bristly Ramalina, dark stringy Alectoria jubata (now renamed Bryoria fremontii), and various leafy Parmelia species that yield orange dyes used in Harris Tweed.

Caterpillar of Fox Moth Macrothylacia rubi
Caterpillar of Northern Eggar Moth

Large handsome caterpillars of the Northern Eggar Moth, the Scottish form of the Oak Eggar (Lasiocampa quercus), up to 3 inches (75 mm) long and nothing to do with oak trees, wriggled across the path, their rufous hairs warning off predators. They feed on Heather and Bilberry.

Scotch Argus
Scotch Argus

In every patch of damp grassland, Scotch Argus butterflies skittered, looking very dark in flight. They are hard to approach as they constantly chase each other off from their territories, but eventually I found one that stayed settled long enough to creep up to. Close up, the upper side is a rich brown, with red patches around the wing edges dotted with black circles that have white centres.

Scabious
Devilsbit Scabious

A few bumblebees, some of unfamiliar species, visited the Devilsbit Scabious (Scabiosa succisa) briefly. Large Syrphid hoverflies basked on the paths.

Glittering Downy Birches
Glittering Downy Birches

Further up the valley, a fine group of birches actually glittered in the bright sunlight, the water of the stream shining silver behind them.

Birch Bracket Polypore
Birch Bracket Polypore

A dead birch, stark against the sky, supported stout Birch Bracket polypores, handsomely whitish-grey above, yellow ochre below.

Bog Asphodel Bell Heather Marsh Orchid
Bog Asphodel Bell Heather Marsh Orchid

In the boggier patches, Bog Asphodel and Marsh Orchid flowered among the Bell Heather.

Rock Bog Heather Birch Mountain Tundra
Rock Bog Heather Birch Mountain Tundra

I turned the corner of the valley to see snow still lying in the deep, north-facing gullies on Creag Meagaidh, and the striking notch of the col that gives access to the mountain ridge.

Nature Walk on Creag Dhu

A red Russula
A red Russula

Today I went for a proper nature walk, after cutting a lot of thistles on the farm in the morning. The birchwoods were lovely with Chanterelles, red Russulas, and the first few Orange Birch Boletes of the year.

Orange Birch Bolete
Orange Birch Bolete (it was delicious)

The sun came out from time to time, enough to make the Spey Valley look lushly golden against the green wooded hills and the distant blue Cairngorms, the heather richly brown in the foreground.

Upper Spey Valley
Upper Spey Valley
Orange crustose lichen with big black apothecia on rock
Orange crustose lichen with big black apothecia on rock
Spotted Flycatcher
Spotted Flycatcher
Wood Warbler and Spotted Flycatcher Habitat

I climbed up the old mossy boulder-field of fallen rocks until I reached the old-growth Hazel woodland, and sat down. Around me, a Spotted Flycatcher brought flies to a juvenile, and a pair of bright yellow Wood Warblers flitted about the trees and showed themselves beautifully. The rocks were richly lichened, and Wild Thyme and Wood Sage (elegant spikes of green flowers with purple anthers) sprouted among the ferns. Maidenhair Spleenwort grew here and there among the rocks. It was really pretty.

Wood Sage, Teucrium scorodonia
Wood Sage, Teucrium scorodonia

Then I made my way right under the last of the cliffs around to the north and up on to Creag Dhu itself, with glorious views over the Upper Spey valley. Half a dozen feral goats played the role of herbivore, along with a Roe deer that skipped away from me effortlessly up the mountain and over a crest.

Feral Goats on Creag Dhu
Feral Goats on Creag Dhu

As I neared the summit, a Peregrine Falcon, wings like an anchor, hung motionless in the stiff wind before swooping to the ground.

Back at base, we had a magnificent mushroom sauce on our rice for dinner.

Moorland … with Orchids

Fragrant Orchid Gymnadenia conopsea among heather on hill, Upper Speyside
Fragrant Orchid Gymnadenia conopsea among heather on hill, Upper Speyside

I’m used to seeing Marsh Orchids up here in Scotland, but I’d always associated the Fragrant Orchid with chalk and limestone. However, I keyed it out with James Merryweather’s very helpful Key for the Identification of Orchids Common in Western Scotland, and there it was, Gymnadenia conopsea, growing among the heather and bilberries with no chalk in sight. Its jizz is quite unlike the Marsh Orchids, with slim unspotted leaves, pale unstreaked flowers, and an unobtrusive long slim spur behind each flower.

Marsh Orchid
Marsh Orchid

The Marsh Orchid is quite variable, usually boldly marked like this one in purple with stripes and loops, but sometimes almost white all over. It’s mostly rather short. The paired pollinia are visible inside a couple of the flowers.

Birdsfoot Trefoil near Dalwhinnie
Birdsfoot Trefoil near Dalwhinnie

Another little plant that I’d not have associated with rainswept moorland is the Birdsfoot Trefoil (or, Bacon and Eggs from its rich red and yellow colours). It is happy in warm dry lawns; but equally at home here on disturbed ground where the competing plant cover is conveniently low.

Lichen-covered rock near Dalwhinnie
Lichen-covered rock near Dalwhinnie

More obviously Highland in character are the tough lichens forming orange and black patches actually in the hard weathered rocks on the moor. The black discs are the apothecia of one of the species, containing the spores of the lichen fungus; they have to meet up with the single-celled algae to re-form the lichen partnership or symbiosis.

Like peering into a rock pool: Cup Lichens
Like peering into a rock pool: Cup Lichens

The miniature world of lichens is able to surprise even people who know their local environment well. The Cladonia ground-living lichens include shrubby species that make excellent tiny trees for railway modellers and architects. The same genus contains several species of cup lichens, some coarse and scaly like the common cup lichen (C. conoiocraea), some tall and slim like C. fimbriata, some with elegant red apothecia around the edges of their cups. This mixture of lichens, including some leafy grey Parmelia saxatilis, was growing on a rock beneath a light canopy of Downy Birches.

One of the former Shielings on Catlodge
One of the former Shielings on Catlodge

In the old system of transhumance, the women and children took the cattle up to hill pastures and lived in shielings during the Highland summers. These are marked today by small rectangles of grey stones, all that is left of the humble buildings, and bright green grassy areas among the brown of the heather.

Female Antler Moth Cerapteryx graminis
Female Antler Moth Cerapteryx graminis

The Antler Moth is sexually dimorphic, the female being larger and with a slightly different wing pattern. Appropriately for a species that shares its moorland habitat with the Red Deer, it has a whitish antler pattern on its wings. The caterpillars eat purple moor-grass, sheep’s fescue and matgrass.

A day for signs (signboards and mimics)

Big hoverfly Volucella inanis
Big hoverfly Volucella inanis

It was a day for signs: we worked all morning digging two deep post-holes for a new welcome signboard beside the ramp path, telling stories as we dug down through dry soil, pebbles and then soft clayey subsoil. Eventually we were deep enough and level enough to pop the sign in, and with nothing more than the spoil, pebbles, and a spirit level and a bit of tamping, we had a fine new signboard up. As if by magic, the TV camera team from ChiswickBuzz arrived to film us holding up spades, a Green Cross banner (some sort of quality of service award), and asking us to cheer improbably, so we shouted 1-2-3 Hooray! and waved spades like idiots, and the camera crew looked happy and wandered off.

Strangalia maculata on Hogweed
Strangalia maculata on Hogweed

There were some bright black-and-yellow insects about pretending not very convincingly to be wasps, but their warning signs seem to work pretty well. After lunch we came back past the signboard to do a butterfly transect, and we nearly cheered as a visitor took a good look at the signboard. We joked that with an apostrophe missing, we’d have to dig the sign out and send it back for a refund.

On the transect we had good numbers of butterflies, but without so much sunshine it was without the masses of Gatekeepers of a fortnight ago. There were a pair of Commas, a Red Admiral, a Brimstone, and plenty of Small Whites, Speckled Woods, Holly Blues and Gatekeepers. A pair of (Migrant or Southern?) Hawkers scooted about from the hut to the ramp; down by the pond was an exuviae of something like a Broad-Bodied Chaser; a Common Darter sunbathed on the boardwalk, and a pair of Azure Blues wandered above the now happily full pond, laying eggs. The reserve echoed to the crash of demolition from the High Street.

Dragonfly Day at Thursley Common

Keeled Skimmers - male guarding, female laying
Keeled Skimmers – male guarding, female laying

It was suddenly summer again this morning, so I packed cameras, binoculars and a sandwich and went down to Thursley in glittering sunshine. This photo perhaps catches something of the dazzle and sparkle of the bog pools and their shimmering guardians: a pair of Keeled Skimmers (Orthetrum coerulescens) are flying over the water; she is darting down to lay eggs, he is hovering above, guarding her from other males. Their wings sparkle and flash, and it is amazingly difficult to follow, frame, focus and shoot fast enough to get anything like a decent picture. But I rather like the motion blur in this one, and if it’s not perfectly in focus, you know why. I hope you like it too.

Emerald Damselfly
Emerald Damselfly

I was pleased, too, with this shot of an Emerald Damselfly, the sparkling water behind it forming a pattern of pleasantly out-of-focus circles.

Small Red Damselflies in Wheel
Small Red Damselflies in Wheel

There were quite a few Small Red Damselflies about, mostly single but a few egg-laying pairs; and a modest number of blues, most likely Azures.

Apart from the hundreds of Keeled Skimmers, other dragonflies included Common Darter, Black Darter (I only saw a few females today), Black-Tailed Skimmer (just one), and Southern Hawker.

Large Skipper on Bog-Cotton
Large Skipper on Bog-Cotton

We saw few butterflies apart from Large Skippers which bustled about flowers near the boardwalk, and little Gatekeepers (I do mean they were smaller than usual) … until we arrived on the amazing Parish Meadow that was once a dump for emptying cesspits. Now it has an ecology strikingly unlike the rest of Thursley Common.

Centaury on Parish Meadow
Centaury on Parish Meadow

The meadow was full of Meadow Browns, Graylings (mating), Ringlets, Essex Skippers, a Brimstone, Large and Small Whites, and … a Purple Hairstreak (about the Oak trees). The rabbit-bitten pasture, dotted with little flower-stalks of Centaury,  was thick with Ragwort, which in turn was richly covered with Cantharid beetles, solitary bees, wasps, and hoverflies and other Diptera. We put up a Silver Y moth which obligingly landed in front of us and perched in the open. We found the traces of a Green Woodpecker killed by a Sparrowhawk; but happily saw a live one in the Oaks nearby.

Cantharid Beetles Rhagonycha fulva mating on Ragwort
Cantharid Beetles Rhagonycha fulva mating on Ragwort
Silver Y Moth
Silver Y Moth
Sparrowhawk Kill - this Green Woodpecker's flying days are over
Sparrowhawk Kill – this Green Woodpecker’s flying days are over

The boardwalks were busy with Lizards and Skimmers sunning themselves.

Lizard on boardwalk
Lizard on boardwalk

We met a local group of birders,  complete with masses of tripods, telescopes and cameras, and asked if they were looking at the Stonechats. No, they replied, the Hobbies, there are three. We looked up, and sure enough there were three raptors. But in our binoculars, they turned out to be a Kestrel, a Hobby, and a Red Kite! Perhaps there were some more Hobbies somewhere else.

A little way further, absent the birders, we found a dead tree with some juvenile birds perched about it, and a lot of twittering. Yeah, a typical Chiswick Cafe. Some of them were young Redstarts; the others, young Stonechats: pretty confusing. But the Redstarts flew up into a Pine tree – not a Stonechatty thing to do – and sure enough, there was an adult Redstart on a lower branch, plain to see. And a Stonechat adult rasped out its grating call over to the right.

In a group of tall Oaks, we sat and ate a sandwich; and a Spotted Flycatcher flew across and perched on a high dead branch. It spent five minutes looking about, twisting its neck remarkably, but making no sallies. When I was a boy I saw them in the garden every summer; now they’re really something special, like, er, Starlings and House Sparrows.

Meadow Grasshopper
Meadow Grasshopper

The sandy heath paths were full of little holes dug by Ammophila Sand-Wasps, and others made by Philanthus Bee-Wolves (or Bee-Killer Wasps). Both are called digger wasps (“Sphecidae”) in most books, and it’s certainly a good name, but the family has been split up, so Philanthus is now in the Crabronidae, which contains most of the old “Sphecidae” (we’ll have to say sensu lato for this); the new Sphecidae (sensu stricto) only contains what used to be the Sphecinae, which includes Ammophila. Rich scope for confusion.  Sphex is the ancient Greek word for wasp, and it’s interesting that Linnaeus chose this word for a digger wasp rather than the social wasps, which have the Latin name Vespa for the hornet, and Vespula, little wasp, for common wasps.

Bee-Wolf (Bee-Killer Wasp Philanthus triangulum)
Bee-Wolf (Bee-Killer Wasp Philanthus triangulum)
Bee-Wolf digging burrow. She will catch a bee and use it to provision her nest.
Bee-Wolf carrying a bee into her burrow to provision her nest.
Sand-Wasp Ammophila pubescens
Sand-Wasp Ammophila pubescens. She too digs a burrow which she provisions with a caterpillar or two. The sand is dotted with angular lumps of iron pan.

Out of a low bush of willow and gorse right beside a boardwalk came a strange, quiet but insistent squawky chatter of alarm. Peering in between the branches, a small slim dark bird with a long dark tail could be seen hopping about anxiously: a Dartford Warbler. It was extraordinary to be within a few feet of this shy, rare and retiring bird, and watching it for several minutes. There are actually quite a few on the heaths of Surrey and the south coast, but they’re never easy to see—most of my views have been of disappearing rear ends, diving into gorse bushes.