Watched some interesting behaviour by a great spotted woodpecker recently. It arrived at a sallow carrying a Sitka spruce cone in its beak, then wedged it in a hole that it had already hacked with its beak, so it could use this as a vice to hold the cone while it pecked out the seeds. Sitka spruce is clearly a winter food source for this bird because there were scores of cones that it had discarded on the ground under its tree. The Sitka plantation nearby is carrying a very heavy cone crop this winter - enough seed to supply dozens of woodpeckers.
Showing posts with label Great spotted woodpecker. Show all posts
Showing posts with label Great spotted woodpecker. Show all posts
Friday, January 19, 2024
Thursday, March 15, 2012
Thornhope Beck
Today's Guardian Country Diary describes a walk along Thornhope Beck, a tributary of Waskerley Beck that flows into the river Wear at Wolsingham in Weardale. The walk starts here, on the road from Wolsingham to Tunstall Reservoir. When this line of ash trees, all of equal stature, were planted they must have been part of a hedgerow that has long-since disappeared. Now they are slipping past their prime and have some dead branches which ....
.... make them excellent drumming sites for great spotted woodpecker courtship.
A little bit further along the footpath, where these stepping stones cross Thornhope beck, there is a magnificent old beech tree ...
...... whose trunk seems to be melting into the ground.
On the south facing slopes of this little valley primroses have been in bloom for a couple of weeks.
The gorse has been in bloom all winter and shelters an extensive rabbit warren.
At this point there are two ways to cross the meandering Thornhope beck, which doesn't have a lot of water in it because it has been a very dry spring: either take the footbridge or the ford.
This Scots pine plantation used to host red squirrels, but I haven't seen one here for 15 years. There were plenty of 7-spot ladybirds though, sunning themselves on the south side of the trees in the late afternoon. A few years ago the ladybird population in Durham plummeted but it seems to have recovered well; I can't recall a spring when I've seen so many. When I walked along here there were several sunbathing on every fencepost.
Beyond the Scots pine plantation the path runs through what my kids used to call 'the sunken lane' when we brought them on walks through here 25 years ago. It's a track worn down by feet, hooves and cartwheels, where stock was moved between pastures and grazed in the woods in the way. Because of the depredations of sheep and cattle there isn't much regeneration of new trees and many of the old ones are decaying and shedding limbs ....
... which makes this excellent woodpecker feeding and nest hole territory.
Beyond the woodland the oaks become more sparse and well-spaced, so I suppose you could call this habitat woodland-pasture.
I sat under this oak as the shadows lengthened and listened to more woodpeckers drumming.
Under the oak there were spruce cones that had been carried here out of the nearby conifer plantation. The scales on this cone have been gnawed away by a grey squirrel ...
..... while this one shows the tell-tale feeding activity of a woodpecker, which has wedged the cone in the oak tree, hacked it with its beak to extract the seeds then let the cone drop to the ground. This oak must have been the woodpecker's favourite feeding tree - there were over 20 similarly shredded spruce cones on the ground underneath it.
The scolding call of this mistle thrush, perched in the topmost branches of an oak, could be heard right across the valley. It probably already has a nest with eggs; mistle thrushes are early nesters.
There's a fine view from here. This is the view eastwards, down the valley, with the swelling buds of the silver birches beginning to impart a warm reddish tint in he tree crowns ....
.... and this is the view westwards, up onto the high pastures and moorland.
Which direction to go from here? Eastwards, down the valley towards home. It had been a glorious day, but as the sun dipped below the hills the temperature dropped like a stone.
Tuesday, March 6, 2012
Headbangers
These two great spotted woodpeckers were duetting in an old ash tree at Wolsingham in Weardale yesterday afternoon. The upper one (which I think is the male) had chosen a short spur of wood from a broken branch to drum on. The female moved from where she is in this picture to a thick old dead branch that produced a sound with a lower pitch when she drummed. They alternated for several minutes before she lost interest and flew off, pursued by the male. Wish I'd had sound recording equipment with me ...... but you can listen to a sound file here.
Sunday, December 20, 2009
It's an ill wind.....
This female great spotted woodpecker has been a frequent visitor to the garden bird feeders during the current cold snap
At the moment it's still very wary, but I'm attempting to coax it into closer camera range by drilling holes in an old piece of tree trunk and plugging them with sunflower hearts and other goodies....meanwhile, it spends most of its time on the peanuts and on the black sunflower seed feeder
Something I hadn't realised until I looked at these photos is that woodpeckers close their eyes when they're about to deliver a hammer-blow with that beak. Compare the photo above with the one below (double-click for a larger image), where you can see the bird's third eyelid (the nictitating membrane - see http://en.wikipedia.org/wiki/Nictitating_membrane) shielding the eye just before it makes contact with the nuts. I guess this is to protect the eye against flying splinters, and apparently it prevents the bird's eyes from literally being shaken out of their sockets under the force of the impact. It must mean that once it begins to deliver the blow the woodpecker is - for a moment - blind...
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Great spotted woodpecker
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