At the Beverley Brook, we were lucky enough – it was quiet enough – to come close to a Heron, fishing in the stream; and just at that moment, a Kingfisher darted up-river, brilliant turquoise, heartstoppingly beautiful. It landed on a willow branch above the water: such a small bird, such perfect colours.
A quiet sunny day in October – probably no migrants or winter ducks – perhaps it’ll just be a peaceful walk in the fresh air. Not a bad thing.
Among the brambles, a dragonfly flashed past; then another, patrolling up and down, inspecting a third one perched stock-still. They were small Hawkers, slim and with a lot of blue, and yes, they were definitely Migrant Hawkers, small Aeshnids that fly pretty late in the year. The patroller saw off a couple of bees or wasps: that’s quite aggressive, given that those insects can deliver a sting fatal to other insects.
Something hopping about in a Willow down by the water caught my eye, so I raised my binoculars, and was at once rewarded by an excellent view of a Chiffchaff, which helpfully called “Hweet” repeatedly to identify itself from the similar-looking Willow Warbler (not specially found in Willows), which says “Hoo-eeet” a bit more disyllabically. I had time to admire its bold eye-stripe before it disappeared into the foliage.
A few minutes further, a REALLY LOUD high-pitched chattering, — such a big sound that it hurt my ears. On a branch above the lake was silhouetted a small bird with a long heavy beak – it had to be a Kingfisher. At that moment, another Kingfisher flew up, hovered for a moment, chattering, and both birds raced off. Well!
Something heavy splashed into the water, leaving ripples. I peered through the branches. A Cormorant took off with noise and effort; another; and three more. A Little Egret joined them, white with short rounded wings and long conspicuous primary flight feathers spread out individually like fingers.
The path past the fishing lake was flooded after the recent storm, from its bone-dry state all summer.
The Hawthorns were glowing a rich red, heavy with berries. Soon the winter thrushes, Redwings and Fieldfares, will arrive and feast on them.
I looked down. In the middle of the track, an enormous latrine — for Rabbits. Hundreds of little round pellets of differing ages, some fresh, many dry and crumbly (I didn’t try to rub them) formed a miniature cobbled pavement. Did you know that Rabbits always used the same toilet? Now you do. Perhaps it help to avoid giving information to predators like the Red Fox about where the Rabbits are today, so the extra effort of, er, going to the toilet pays for itself in increased safety.
In the horse field, this year’s foals were still staying close by their mothers, who went on grazing unconcernedly; a foal eyed me nervously as I went by.
At the Solar Farm, a small tractor whirred up and down, cutting the grass. Seems a shame that they can’t follow the excellent lead of Thames Water, who use a flock of Sheep to keep the grass short around their reservoirs the other side of the railway line. Still, it’s clean green energy, for the most part.
Just a quiet autumn walk on a sunny day. Nothing remarkable to report.
The presenters on Radio 4’s PM programme said that we needed an Awesome Nature Walk to lift our spirits during this renewed Covid Lockdown. Happily, we had already planned to go on one, and here it is: an Awesome Nature Walk at Wraysbury Lakes.
The walk begins near the road bridge over the Colne Brook at the bottom of the map, which is by a repair garage. I’ve drawn the sketch map to give something of the feeling of the route while I’m walking it, rather than attempting to make an objective map.
The area is just outside the M25 ring motorway that informally defines London’s boundary; Heathrow Airport is just inside that, so in normal times (hmm) there is a plane overhead every 90 seconds. Down on the ground, there are numerous lakes which all started life as gravel pits. The River Thames laid down great amounts of sand and gravel in its wide flood plain during the Pleistocene, and the various Flood Gravels now form valuable building materials. Extraction round here has finished, but there are active pits a bit further afield. The pits go below the water table so they fill up by themselves. The large Reservoir is a bit different – it has an enormous high earth bank all around it, so the water level is high above the surrounding ground level (maybe there was gravel extraction there too before the Reservoir was built). A railway runs across the area; it can be crossed at a pedestrian level crossing with a pair of stiles and a lot of looking both ways. To the south of the lakes is an attractive area of thorn scrub with Hawthorn, Dog Rose, Spindle, Bramble and suchlike, with quite a few trees, all very good for wildlife. Down by the lake edges and the Colne Brook are many large Willows and Poplars which grow quickly, lean over, fall, and sprout up anew, forming a constantly-changing cycle of growth and regeneration, and providing cover and roosting-sites for warblers and water-birds.
The lakes have variously been repurposed – one is used by the sailing club, though I more often hear the clatter of rigging vibrating against sail-less masts on windy days than people actually sailing. Another is a strictly private fishing lake, protected by fierce signs and fiercer fences which must have cost a fortune to put up. The lake by the start of the walk is open to wildlife and fishing is forbidden; a delightful trio of icons make it clear that running with a large carp under your arm is forbidden, as is spear-fishing (or is that a black line crossing out a standing fisherman diagonally); frying fish on a griddle is not allowed, though nothing is said about making fish stew in a saucepan, interpret the icon how you will.
South of the scrubland is a pleasantly scruffy pony-field with scattered thorn-bushes and rough grass dotted with tufts of Alfalfa. It rises to a low hill which was once a municipal landfill dump. For some years the dump was grassed over and the ponies roamed all over it; then men came and installed deep pipes to sample and carry away the presumably polluted groundwater; finally, a sizeable array of solar panels was installed and fenced off, complete with security cameras, so ponies and walkers had to make a detour around the array.
So — airport, motorway, gravel-pits, railway, landfill, post-industrial leisure activities, it’s pretty much the classic Urban or Peri-Urban nature area.
The bridge over the Colne Brook offers a glimpse of calm nature; the water babbles softly among the waterweeds, and two Kingfishers dark on triangular wings just above the surface. One swerves into a U-turn, catching the sun to reveal its brilliant blue-and-turquoise plumage. What a moment to start a walk.
We dive gratefully down the few steps from the pavement to the path: the pavement by the bridge is half-occluded by unclipped bushes, and the traffic whizzes past perilously close to unwary walkers.
In the sudden quiet we peer through the trees to the lake. A gang of twenty Cormorants is on the water, with a group of Mute Swans.
The path is bordered with Willows and coarse herbs; a patch of colourful Comfrey, once used to help knit broken bones, attracts some Common Blue Damselflies. At a gap in the Willows, a Cetti’s Warbler sings its abrupt, loud song. Some Migrant Hawker Dragonflies scoot too and fro beside the water, their transparent wings whirring, their long slender bodies glittering blue.
We come to a patch of reeds where we can see right across the lake. A Chiffchaff flits between bushes. On the far side is a bank of Willows, several with protruding dead branches. Perched on these are a few Grey Herons, half-a-dozen Cormorants, and most excitingly three Little Egrets — small white herons with black legs and yellow feet: uncommon visitors here. All of these are predators, feeding on fish and small animals like frogs; the Cormorants fish by diving from the surface, while the herons stand by or in the water, looking out for prey.
The track through the thorny scrub is bright with Rose and Hawthorn fruits — “Hips and Haws” in the fine old country phrase, rich with double entendre, glowing in different shades of red. Across a wide patch of Teasels and Burdocks and Thistles, all tall and prickly in their differing ways, more Hawthorn bushes are still in green leaf but bursting with red fruits, so they are red and green at once, which you might have thought impossible, but there it is, spectacular.
We swing through the kissing-gate and into the pony-field. The animals barely glance at us, the rich grass is clearly far more interesting. “Alfalfa” apparently means “King of Herbs” in Arabic; it was supposedly the finest pasture for grazing animals from goats to camels.
The path rounds the Solar Array; I guess it’s good to know that more and more of our energy is renewable, even if an Electric Vehicle, with its large price-tag, doubtful driving range, and complicated charging arrangements if like me and many city-dwellers, you don’t have a front drive to park and charge it on, is still perhaps a bridge too far. It does feel as if, with one more push, there could be charging points everywhere and affordable prices, and suddenly it’ll look not exotic but obvious. Five years, maybe? Who knows, but at least it’s coming.
Well, after 7 Vole Patrol postings, and some very cold, wet and early mornings, I felt like enjoying a nature walk in the sunshine, away from Woodmice. But as I left town I found myself in fog, not too thick to be sure, but fog nonetheless.
I was rewarded, however, with the lovely sight of the willows along the lake seeming to float, isolated in the smooth sea of soft gray.
As the mist slowly lifted, a pair of Goosanders and a pair of Goldeneye (the male displaying, the female in tow a yard behind) could be seen through the mirk.
I couldn’t get away from the mammals, either. I was pleased to see not just the usual Muntjac prints along the path, but Roe Deer too. A little way further, and there was a Wood Mouse hopping in a relaxed way across the path, before diving down its hole.
Among the birds calling were Green Woodpecker (finely), Great Tit, Song Thrush, Cetti’s Warbler. A Heron and a Parakeet flew overhead. Wood Pigeons and Carrion Crows watched warily.
The damp air had another good effect: the lichens looked wonderful, and even the bristly Ramalina were soft.
It was nice to see the lichens flourishing so close to London (and Heathrow): these little fungus/alga plants are very sensitive to pollution, and when I was a boy they were almost impossible to find anywhere near a city, so conservation stories can be happy.
A twittering, constantly moving flock of a dozen Goldfinches greeted my arrival at Wraysbury. The wind was already keen and I was glad of my thick fleece and waterproof jacket. A few Wood Pigeons and a Crow or two blew down the wind, hardly needing to flap. Even a Heron, doing its best to flap downwind as usual, rocketed past in the swift airstream. A solitary Fieldfare chattered to me from a bare thorn tree, its chack-chack unmistakable.
The stormy winds of the weekend had broken several large willows including the big one just North of the bridge: two branches had fallen, cracking off what are now revealed to be fragments of the hollow shell of the trunk. Willows and poplars are dangerous as the trunks are short-lived and often rotten inside: and the fast-growing branches can be very thick and heavy.
This tree by the lake snapped its seemingly solid, reassuringly mossy trunk and fell into the water. It was quite hollow, filled with soft brown beetle frass with finger-thick borings. Notice, however, the bracket fungus near the base.
The lake was covered in winter wildfowl, as the Channel at dawn on D-Day was covered with ships. I gave up trying to count the hundreds of Gadwall; there were dozens of Wigeon and Tufted Ducks, and plenty of Mute Swans, Canada Geese and Coots too. A few Cormorants, some with very white bellies, and a Great Crested Grebe or two made up the numbers. As I raised my binoculars, a Kingfisher darted from the near bank and raced right across the lake, perching on the far side.
When a chilly east wind drops and the sky clears to a brilliant blue in February, it is a shame not to drop everything and rush outside to enjoy it. So I found myself down at Wraysbury Lakes, all wrapped up in my winter clothes — but my gloves never left my pockets, and my jacket and pullover were soon unzipped as the temperature climbed to 9.5 C, and in the sun with scarcely a breeze (the planes returned to their usual takeoff towards the west) it felt far warmer than that.
Some handsome white bracket fungi shone in the sun; they were triangular in section with flattened tops, slightly toothed beneath. Could be a Trametes or Tyromyces perhaps.
On the lake, half a dozen Goldeneye were all that were left of the more ‘special’ ducks; a male joined the party, and a female swam rapidly up to him, bobbing her head; he bobbed back, and threw his head over his back too. Spring is in the air. It looked as if they were already a pair, I’d say.
Also on the lake were some handsome Pochard, mostly asleep, one diving and surfacing, and a Shoveler, preening. A Heron flew slowly over, half a wingspan from the water. A Field Mouse ran right in front of me and down to the waterside by the willows, and obligingly fed in the open for a minute while I watched with binoculars on close focus: the long tail, round ears and quivering ‘whiskers’ (vibrissae) at work.
Away from the lakes, a Rabbit hopped across the path. A Mistle Thrush called harshly; another flew past; a solitary Fieldfare left over from the sizeable flock a week or two ago.
I wandered down to the confluence of the Colne with the Thames; a Kingfisher gave me a good of that always astonishing turquoise bolt of blue lightning, flashing on short triangular wings over the little river. A minute later, it flashed back upstream, as startling as before. A single green sphere of Mistletoe clung to the leafless canopy of a tree behind the industrial estate.
On this lovely spring day I drove around the backstreets of Ickenham until I found my way to Austin’s Lane (there’s The Old Fox pub marking its start) and so to Ickenham Marsh nature reserve (London Wildlife Trust). It’s tucked away behind Northolt airfield: the second world war Spitfires have been replaced by transport planes and executive jets, but the result has been to keep development at bay. The marsh is bordered with great drifts of blackthorn, the soft white blossom lovely in the broad hedges. Chiffchaffs were singing all over, and a mistle thrush rasped out its harsh flight call. Even the dunnocks looked splendid, their grey and brown plumage catching the sun as they chased low around the bushes. The breeze brought the occasional whiff of aviation fuel, but still there were some small patches of common orange lichen, Xanthoria parietina, and the grey lichen of bare twigs, Parmelia.
A complete surprise was the Midland Hawthorn by the Hillingdon Trail which crosses the reserve. The bush is the same size and shape as the common Hawthorn, but the leaves are only very slightly notched rather than deeply divided, and the flowers have two styles, not one (easy to remember as the common Hawthorn is C. monogyna ‘one-female’). An uncommon or perhaps just an easily-overlooked plant, something old and special on the edge of London.
Also crossing the reserve, roughly northeast-southwest, is the Yeading Brook. I was just taking a photo of the first buttercups of spring, the lesser celandine, which likes wet muddy places, on the steep bank of the brook, when a kingfisher shot down the middle of the little stream, blue and turquoise. I turned to take my photo, and the kingfisher, or its mate, raced back past me again.