Goldfinch

This photo of a Goldfinch was taken in my garden during January 2007.
The technical information is as follows.
Camera - Canon EOS 30D
Shutter speed - 1/200
Aperture - f7.1
Lens - Sigma 50-500mm f4-6.3 APO EX HSM
Focal Length 500mm
ISO 500
Filter - UV
Tripod