Tuesday, 31 March 2009

Black Woodpecker: fresh feeding site

Black Woodpeckers can make some impressive holes when hacking into timber in search of invertebrates. Note that such holes are not nesting cavities. The round hole (with human hand for size comparision) does to a certain extent resemble a cavity entrance, but it is too large and too low on the tree. Note also the resin/sap that has streamed down the trunk from the holes. Photo taken in March 2009 in the Slovak Karst National Park, Slovakia.