Black Woodpecker Dryocopus martius at nest-hole. Note the classic, oval shape of the cavity entrance.No other European woodpecker makes nest holes of this size or shape. This is another shot by my friend Uku Paal in Estonia.
Male (above, on tree) and female (below, landing) White-backed Woodpeckers Dendrocopos leucotos. Note red crown of male and black crown of female. This great photo was taken by Uku Paal in Estonia in winter.
Recent feeding site of Black Woodpecker Dryocopus martius in an oak tree. Note the neat oval shape, clean wood and the beak marks. Buda Hills, Hungary, October 2009.
Adult male Eurasian Three-toed Woodpecker Picoides tridactylus alpinus. Note the yellow crown. This is is only European woodpecker with yellow feathers in its plumage. Photo by László Bécsy, Volovske Mountains, Slovakia, May 2007