Sunday 22 December 2019
Friday 11 October 2019
Tuesday 14 May 2019
Friday 22 March 2019
Foraging signs of two woodpecker species
On the left, a thin tree stump worked on by Black Woodpecker Dryocopus martius. On the right, a spruce tree stripped of its bark by Three-toed Woodpecker Picoides tridactylus in search of bark-beetles. Bialowieza NP Forest, Poland, March 2019. Many of the foraging signs that woodpeckers leave are difficult to assign to species but some, like these, are typical to each.
Wednesday 6 March 2019
Saturday 9 February 2019
Friday 18 January 2019
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