Tuesday, February 28, 2017

Leucistic House Finch

Leucistic finch at center of photo--note male further back to the left
I looked out my back door and saw a white bird on the ground under my feeders. Of course, I grabbed my binoculars and as luck would have it, the bird and its cohort stayed put (which generally is not how it works.) I grabbed my cell phone and snapped a quick picture. Not a great picture, but if you look closely, you can see the leucistic house finch on the ground.

Leucism is caused by a genetic mutation affecting pigmentation. The birds (and other animals) keep their dark eyes (unlike albinism), but have white patches or are white. Here is a short summary about leucism in birds.

Good birding!

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