Thursday, 8 January 2009

Woodpecker Holes in Buildings

This photo shows a hole made by a Great Spotted Woodpecker Dendrocopos major in a wooden door on a cabin. In Europe several woodpecker species including Black and Grey-headed do this, usually when in search of hibernating invertebrates. But it is not totally clear why the birds hack into buildings like this one, by Lake Balaton in Hungary, which are not rotten and not infested with invertebrates. One theory is that woodpeckers sometimes bore into such surfaces because they are deceived into thinking that insects are inside by the sounds made by electricity cables, which resemble the high frequency sounds made by invertebrates.

3 comments:

Dean said...

Very interesting blog you`ve got here, Gerard.
I`ll definately be returning, to see what other posts you come up with.

Gerard Gorman said...

Hi Dean, glad you like it. If you have any photos of wildlife signs from your part od the worls please sennd them, I'll be happy to include them with your comments. Gerard.

Dean said...

Thanks, Gerard. I`ll keep my eyes open then.