Great Spotted Woodpecker and Chick

This photo was taken at Hermand Birchwood, about 2km south of West Calder, during June 2006.
The technical information is as follows.
Camera - Canon EOS 300D
Shutter speed - 1/640
Aperture - f10.0
Lens - Sigma 50-500mm f4-6.3 APO EX HSM
Focal Length 500mm
ISO 400
Filter - UV