Category: Habitats

Woodland Edge

12.45 p.m.: WOOD PIGEONS clatter about and coo in a clump of trees and bushes by Coxley Dam. A Dunnock methodically pecks amongst the gravel, grasses and weeds at the edge of the parking area. Short heavy showers are interspersed with watery sun.

A Wren flits from the post to a clump of nettles, following the same route along this short stretch of woodland edge as the Dunnock but a foot or two higher, amongst the vegetation.

So that’s ground layer and herb layer that are being checked out for invertebrate prey. Up in the tree canopy, around fifteen feet above the ground, a Blue Tit is making an equally thorough investigation of the branches and foliage.

And of course there are those noisy Wood Pigeons too. They’re no doubt doing some feeding in the canopy while they’re there but I suspect most of their feeding is taking place in the surrounding arable fields and pastures, with frequent trips back to the cover of woodland when they’re disturbed.

Scotch Mist

7.55 a.m. Inverness, Light rain: CLOUDS ARE lying in the valleys north of Carrbridge and the view of the Cairngorms as we pass through Aviemore is blotted out altogether. I hope it won’t be too long before we’re back in the Highlands again because I’d like to see more of this rugged landscape.

As we pass the distillery at Dalwhinnie I spot the pantechnicon carrying the ‘Pole Position Dodgems’ parked in a layby alongside the A9. Like us, the fun-fair is making its way back to the lowlands after its weekend in Inverness. They were pitched in Bught Park by Ness Islands. Somewhere in one those wagons must be the giant glossy fibre-glass figure of Jiminy Cricket which presides demurely over one of the spinning, dipping and diving rides of the fair. We once accidently brought a cricket back in our suitcase from the island of Rhodes, a male which we didn’t discover until a week or two later in our bedroom when he started making a noise like a smoke alarm in need of a new battery. Luckily he wasn’t eight feet tall and carrying a folded umbrella like the fun-fair’s Jiminy.

I spot Red Grouse, a deer (probably roe) and plenty of Buzzards from the train. The journey goes remarkably quickly as, apart from drawing the wonderful landscape that is passing by, we’re treated to two meal breaks; a breakfast as we pass through the Highlands and, as we reach the Firth of Forth, then the Northumbrian Coast, a lunch – as on the journey here – of feta and roast pepper quiche with a rocket salad in a balsamic dressing, accompanied by a glass of Sauvignon Blanc. By now the Scotch Mist has been replaced with a sunny interval and a mighty rain cloud hovering over distant Newcastle. As we pass through Berwick I can see Lindisfarne, the Farne Islands and Bamburgh Castle in the distance across the wide open spaces of this coast.

It will be hard to consider anything other than a bargain first class rail break on East Coast next time we feel the need of a relaxing weekend in Scotland. And I’m not getting sponsored by East Coast for saying that! I ought to, but I’m not; they filmed Vic Reeves’ artistic escapade (video still online at the time I posted this) on the East Coast mainline but he only travelled as far as Darlington, so he missed the most scenic stretch in my opinion. He took far more artist’s materials with him than I do! And they gave him a table to himself. There wasn’t room for that on this morning’s service with so many of us heading back south after the weekend.

Ness Island

WE WALK along the towpath beside the Caledonian Canal for a lunch break at the café at the Floral Hall then return to the centre of town via the footbridges to Ness Islands. I draw the standing waves at the upstream tip of the first island. It’s like sitting at the prow of a ship. Anglers stand waist deep in the river.

Giant Sequoia

At the downstream end of the second, longer island, there’s a large Wellingtonia or Giant Sequoia, Sequoiadendron giganticum, with drooping lower branches which make an effective umbrella when there’s a passing shower.

The reddish bark feels slightly spongy which must provide effective insulation from winter frosts and from the forest fires that occasionally sweep through the tree’s native habitat on the western slopes of the Sierra Nevada in California.

Each leaf scale is 2 or 3 millimetres long

Looking up into the branches (top photograph) it appears as if the tree has long slender needles like a pine or fir but if you look closely the leaves are scale-like, as seen in this photograph of a dry twig (they’re green when fresh) that I’ve taken with a low-power microscope.

The Top of the Tree


Sequoias can grow to 50 metres but how tall is this specimen?

I made a rudimentary clinometer using my hand lens (which hangs on a loop of string) as my plumb-line to establish the vertical and the long edge of my sketchbook, held to my eye, to point at the top of the tree, marking the vertical across the inside back cover of the sketchbook.

I measured the distance to the tree as 76 lengths of my hiking boots and added another four lengths to get me near the centre of the tree, which was probably an underestimate. Because the ground fell away sharply at one side I was unable to measure the girth of the trunk.

By drawing out the angle to the horizontal and the baseline distance to scale (right), I can measure the height as 96 hiking boot lengths so that’s 96 x 34 centimetres (they’re big boots, but very lightweight!); that’s 3264 cm, making the Sequoia approximately 32.64 metres tall, about 107 feet.

Errors include the gentle slope of the ground down to the river and my eye being about 1.8 metres above ground level but those two probably cancel each other out. Also from such an oblique angle I couldn’t actually see the top of the tree.

Merkinch

DESPITE THEIR NAME, I don’t often see Common Gulls in West Yorkshire, or perhaps I mistake them for Black-headed Gulls in winter plumage, so I take the opportunity to draw a birdwatcher’s field sketch when we see one on the sea wall by the old ferry ticket office at Merkinch Local Nature Reserve, where the River Ness reaches the Beauly Firth.

Helpfully a Herring Gull flies down to give us a size comparison. Looking in the book, the only character that doesn’t match is the ‘dark bill’. The Common Gull has a yellow bill in summer but by now this will be getting duller with a darker ring near the tip. I notice that, even in my quick sketch, I haven’t shown the bill to be as dark as the eye or wing bars. Seeing it against the sea might also have made it appear a little darker than it was.

Tidal Pools

Herring Gulls, Curlew, Greater-Black Backed Gull, Oystercatcher and Redshank were amongst the birds feeding, or just loafing about, by the tidal pools of the bay between the old ferry and the breakwater where the Caledoniaon Canal enters the Beauly Firth.

Channelled Wrack

There’s a band of seaweed along the lower half of the sea-wall. At the top edge of this there’s Channelled Wrack, Pelvetia canaliculata, which has swollen ends to its fronds. These are the reproductive bodies. You can see the channels that give this seaweed its name on the underside of the fronds in the lower left of my photograph.

Spiral Wrack

Growing in a band below the Channelled Wrack, Spiral Wrack or Flat Wrack, Fucus spiralis, also has swollen tips but these are usually in pairs. The fronds have a tendency to twist, hence the name and, unlike the Channelled Wrack, they have prominent midribs.

Its tough leathery fronds have no air bladders.

Knotted Wrack

Below the Spiral Wrack, at the foot of the sea-wall, Knotted Wrack, Aescophyllum nodosum, spreads out onto the beach. It is also known as Egg Wrack because of those egg-shaped air bladders.

Polysiphonia

Looking amongst the Knotted Wrack on the beach, I found this red seaweed growing attached to one of the fronds. The three wracks are Brown Algae but Polysiphonia lanosa (it doesn’t have an English name) is a Red Alga.

Edible Winkle

Lying amongst the Knotted Wrack and Polysiphonia were shells of the Edible Winkle or Edible Periwinkle, Littorina littoralis. This gill-breathing sea-snail (a mollusc that is a member of the subclass Prosobranchia) feeds on seaweed.

The River Ness

Mas leat an saoghal, is leat daoin’ an domhain

If the world is yours, the people of the world are yours too.

Gaelic proverb on the wall of the Cuach Coffee Shop, Inverness Museum and Art Gallery.
(A Cuach or quaich is a shallow, two-handed drinking cup, still used on Burns Night in Scotland)

DOES THIS PROVERB mean that if you go out into the world and become a part of it people will accept you and welcome you? It could just as easily be the motto of Cináed mac Ailpín (Kenneth MacAlpine), “The Conqueror”, the ninth century King of the Scots who is reputed to have conquered the Picts.

Inverness, known as ‘the Capital of the Highlands’ is the only capital city that I know of where you can look down from a bridge and see the bottom of the river.

10.25 a.m.: A juvenile Herring Gull wheels down to the grassy bank on the far side of the river to peck and preen, oblivious of the people walking past yards away on the pavement at the other side of the wall. My sketches suggest that this is a juvenile that fledged last year because its back is beginning to turn grey (top left). In a first year bird, the back would be entirely mottled brown.

Some of the litter bins have posters on them asking you not to feed the gulls. The gulls are streetwise, hanging around on the bustling pedestrianised high street of the city, on the look out for scraps. They can recognise a bag of teacakes from a hundred yards away; a man and boy walk past, the man holding a white plastic bag of teacakes (for human, not gull, consumption) and soon three gulls and two crows appear.

These crows are black like the Carrion Crows we’re used to seeing in Yorkshire but we also see Hooded Crows which are grey with black head, breast-patch, wings and tail. Seeing this race of the crow always makes me feel that I’m in the Highlands. They’re also the crows that you’re likely to see in Europe to the south and east of the Alps. We see a number of hybrids of the two races.

An immature Grey Heron watches then strikes. I can’t see whether it actually caught a fish but I suspect that it did as it then wiped each side of its bill against the branch that it’s standing on.

Three Herring Gulls swooped down on the Heron and half-heartedly tried to dislodge it from its perch. They then took up look-out posts on the tops of buildings overlooking the river.


The Undesignated Countryside

I’M WORRIED about my local patch of countryside. What’s there to worry about, you might ask;  the old railway marshalling yards at Healey Mills were featured on a BBC Natural World film as a superb example of butterfly habitat; the Strands and the Wyke made it into the national press as a unique wetland area (the first place in Britain that wild White Storks have nested after an absence of 600 years) and, crucially for biodiversity, these Calder Valley habitats are linked to the Yorkshire Wildlife Trust’s nature reserves at Stoneycliffe and Stocksmoor by Coxley Beck – the only stream in the area with a population of bullheads – and the much-loved woods of Coxley Valley.

Well that’s just how naturalists like myself, local people and the national media see it. This particular stretch of the Calder Valley is also a literary landscape; it features in the novels of the late Stan Barstow who was born in Horbury. Addingford Steps on the path down into the valley take on a symbolic significance in a couple of his novels where characters move from their everyday urban existence to an inkling of a new life with a deeper meaning. I think that’s what a patch of countryside on our doorstep does for a lot of us. It gives us somewhere to think, to forget our everyday concerns for an hour or so.

The valley was where I roamed with my friends as a child and where I set out with my sketchbook as an art student to draw plants, birds and animals.

So much for stories and inspiration; planners and politicians take a different view:

How a Planner might see the Calder Valley

There’s currently a major review of planning legislation in England. We need to get the country’s economy back on it’s feet so the suggestion is that any planning application that can be shown to promote sustainable development should be approved unless it has environmental implications.

But the habitats that I have described above don’t enjoy any special protection. In that sense, they have no special significance in planning legislation. On paper there would be no environmental implications; we’re not talking about a National Park or a Site of Special Scientific interest. None of these habitats, despite their national fame, is recognised as a Local Nature Reserve (not that they enjoy any special legal protection). Approval of applications would, presumably, be automatic.

In the south of England the most biodiverse nature reserve in the country is on brownfield land. At the Olympic site in London, efforts have been made to integrate meadows and watercourses into the design.

We can encourage biodiversity in planning but only if local people, who know the area best, are encouraged to contribute to the planning process. The presumption in favour of development would make it almost impossible to save habitats like these.

A Good Drenching

OUR LONG SPELL of mainly dry weather has ended with a good drenching which we’re hoping will persuade the runner beans and courgettes to spring into action again. At least the dry spell has meant that we’ve had plenty of raspberries ripening.

In the heavy rain at 5 a.m. yesterday morning, the electricity went off and we didn’t get it back until 12 hours later. Fortunately we have a gas hob (and a whistling kettle standing by for such emergencies!) so we were able to turn the ripe Victoria Plums that my mum had given us yesterday into 6 lbs – ten jars of various sizes – of jam. We’re getting used to not over-setting it.

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Categorized as Garden

The Wall by the Tithe Barn

I HAVEN’T noticed this inscription before, on a stone on an old wall by the car park on Tithe Barn Street, Horbury. In my photograph of the wall (right), you can just make out the spire of St Peter’s Church in the background. The barn where the church tithes – traditionally one tenth of the village’s harvest – were gathered stood a little to the left of this photograph. Unfortunately the barn burnt down in the early years of the 20th century and all that remains of it are timbers built into a wall behind a brick-built house that stands on the site.

I wonder if the inscription ‘C C 1831’ could have been made to mark a boundary at the time that the common fields of the village were enclosed. The area now occupied by the car park was once Horbury’s cemetery, which I assume was established here at about the time of the enclosures. The original churchyard must have been full to capacity by then. As a schoolboy I remember that the wall extended around the area alongside the road (and had an opening to a urinal built into it). There were old headstones and table tombs in what was by then a rather overgrown cemetery. Many of the remains were re-interred in Horbury’s newer cemetery, opened in Victorian times on Hall Cliffe, a quarter of a mile to the north, when the red shale car park was made in the 1960s but I believe that some of our Horbury ancestors still rest in peace under the car park.

Reception

I don’t know what makes a noticeboard, the back of a monitor and a pile of bags so compelling but I find the view of the back of the reception desk in the health centre an enjoyably absorbing subject to draw.

Kingfisher

THIS MORNING I spotted a Kingfisher flying to a perch on a branch on a pebbly bank at the edge of the river by the Bingley Arms. It spent a minute or two bashing the small fish it had just caught against the branch.

It watched from the perch for a while then dived down into the shallows beneath, emerging without catching a fish. Back on its perch but looking the other way, it watched, then dived again, once more without success, before flying off downstream.

It’s a long time since I saw a Kingfisher and I don’t remember ever seeing one dealing with a fish but it’s good to know that they’re still about.

Monkeying about with Elements 5

As I listened to the radio, I started doodling on the back of an envelope. Envelopes are often pleasant to draw on, smoother than the cartridge I’m used to but still with enough grain on the surface to provide some character.

I’ve recently loaded up Photoshop Elements 5 on my computer. It came bundled with the scanner but I’ve never given it a try. I’ve yet to find a program that makes animated GIFs as simple as they should be. The Elements version won’t allow me to vary the speed between frames so this ape is doomed to roll his eyes continuously at a rate of 0.2 seconds between frames.

Fossil Shells

22°C, 5.50 pm.
THESE PIECES of sandstone at the corner of the pond provide access to the water for birds and perhaps some cover for newts and frogs. They also help disguise the edge of the black plastic pond-liner. The first pond that we dug when we moved here was lined with builder’s damp-proofing plastic – blue polythene sheeting – which wasn’t resistant to ultra-violet light. I covered the edges with turves and spread garden netting across the bottom of the pond and pressed sub-soil from the hole we’d dug into it. This produced a more natural-looking pond than our present one but it had a tendency to wick water away and the netting wasn’t a good idea; on one occasion I saw a frog that had been drowned when it had gone down into the mud and got caught in it.

Brachiopods

I noticed these impressions of fossils shells in the rock on the far right (top). Superficially they look like cockle-shells but these fossil creatures weren’t bivalve molluscs; the Brachiopods (the name is from the Greek meaning ‘arm-foot’) appeared in the Cambrian explosion of life on Earth and have been around for 570 million years. Three thousand fossil species have been described but today only about 100 living species remain. They have suffered from competition with bivalves such as cockles, oysters and mussels.

Modelling clay cast of brachiopod. I can't decide whether this is a complete shell or whether these are two valves from separate individuals which just happen to have fossilised together.

These fossils are negative impressions of the shells so I pushed a piece of modelling clay into the hole and made this positive  cast of the original shell. When this shell was last visible on the surface of the earth it was on the seabed at a time when our part of the Earth’s crust lay close to the equator, some 300 million years ago in the Upper Carboniferous period. As the fossil is in sandstone, I guess these brachiopods must have been living near the mouth of a river.

The ribs on the shell bear this out as they indicate that this species of brachopod was adapted to live in shallow water in a strong current. A smooth shells would indicate a species that lives in deeper, calmer waters. That zig-zag line which marks the opening of the shell is known as the commisure (below right); brachiopods developed a folded commisure to increase feeding area while preventing sand particles entering.

Brachiopods stood on a pedicle stalk anchored on the seabed and opened and closed the two valves of their shells to feed. The hole in the shell where the stalk protruded led to them being given the name ‘lamp-shells’, as the larger valve resembles a Roman oil-lamp, with a hole for the wick.