Tuesday, December 1, 2015

Leucistic American Goldfinch

On 30 November 2015, a leucistic American goldfinch accompanied a small flock of normal-plumaged goldfinches to our feeders. The long contour feathers splayed across the wings are also abnormal. Although an Internet search brings up many images of leucistic goldfinches, this individual is the first that I have seen.
The wings are also intriguing. Their general black hue suggests a male. The tan wing-bars are typical of a first-year bird. Leucism causes birds or other animals to be pale or have white patches. Albinos are pure white and have pink eyes.