Monday, April 20, 2015

Woodland walk along the river Tees that J.M.W.Turner trod 200 years ago




This is the view of the river Tees from Abbey bridge near Egglestone, on a tranquil spring day. When the snow melts in Upper Teesdale this becomes a raging torrent, roaring through the rocky gorge. 


The woodland on the steep banks of the river here is exceptionally beautiful in spring, carpeted with wild flowers. Last week wood anemones were the star of the show; next week the bluebells will take over.


Fallen trees are left to gently decay and often develop their own 'garden' of flowers as they rot - like this one with a flora of wood anemone, ramsons and herb Robert.



































Last week the bluebells had just begun to flower but it will be early May before the tree leave canopy begins to close over them. The fully-grown trees are mostly sycamore and oak.




















The path winds through a dense carpet of wood anemones, high above the river.


























Wood speedwell Veronica montana


















When we arrived there was still a chill in the air and dew on the leaves, so the wood anemone flowers were all nodding downwards ...










..... but by mid-morning, as the sun climbed higher in the sky, they turned to face it.

















This wood anemone had purple leaves.
















Some early wild cherry blossom, hanging over the river.


Wood sorrel, nestling against a moss-covered tree base. The leaves fold down at night, like triangular tents.


















Beyond the woodland the path passes through pastures, with ground ivy Glechoma hederacea flowering in the shelter of a dry stone wall.















Last week the first influx of warblers arrived, with this willow warbler and blackcaps singing



















Last time we passed this way the elms were just coming into flower. Today their clusters of seeds were well-formed.














A bee-fly, a parasite of mining bees, sunbathing in a clearing.

















Crane-flies mating.
















A comma butterfly soaking up the spring sunshine after a long hibernation.














In 1816 J.M.W. Turner must have walked this footpath and perhaps sat somewhere near here to sketched this scene, at the confluence of the river Greta and the river Tees, which he painted in 1818. I like to think that perhaps he sat under this ancient oak, which would have been more youthful then, to view the scene, which you can see in his painting by clicking here.

Saturday, April 18, 2015

Nuthatch home improvements

We spotted this nuthatch, busy working on a nest hole in an old oak tree, when we were out walking in Teesdale last week.


Nuthatches usually nest on tree holes, selecting one that has a slightly larger opening than they need and then partially blocking up the hole with mud. We watched it make several trips down to the edge of the river Tees to collect the necessary building material but ....

.... it also came back with water and then seemed to regurgitate it as it entered the nest - you can see droplets hanging from its beak in this rather blurred photo. I suspect that what it was doing was softening the mud that was lining the entrance but had dried in the sun, because then ....


















..... it entered the nest hole and then squeezed out again through the muddy aperture ....

















..... using its body to mould the perfect size of entrance hole.

















Thursday, April 16, 2015

Nippers


Today's Guardian Country Diary is about the return of marine life to the Durham coast at Dawdon, where coal mining waste was dumped onto the beach until Dawdon colliery was closed in 1991. An underwater survey by divers at that time found half a metre of coal silt on the sea floor at Noses Point (in the background of this photo) and water that was so turbid that it was impossible to see any marine life.





















Since then the Turning the Tide campaign has cleaned up the beaches, to the point where this beach was recently described in the Guardian as one of the best lesser-known National Trust beaches in the UK 

Click here for more pictures and information about the restored coastline here.

Meanwhile the waves have done their work offshore, washing away the coal spoil, so now it's a beach where you can go rock-pooling again. We found this shore crab amongst the rocks near Noses Point. The pointed abdomen under its body indicates that it's a male.

























Catching a shore crab took me back to childhood rock-pooling days, and learning to pick up an angry crab between finger and thumb on either side of the shell. That armoured carapace protects the crab from predators but prevents it reaching above its shell with those powerful nippers. This method of holding them works well with shore crabs but from painful experience I've learned that this is less successful with velvet swimming crabs whose nippers seem to be better articulated and can reach back to deliver a very strong pinch.