There was a post recently at Bootstrap Analysis about mutations in wildlife in the Chernobyl area. In barn swallows, albino head feathers were much more frequent.
I couldn't recall ever noticing albinism in any birds before this spring. But this spring, a robin with albino plumage on the head appeared in our yard. I have seen him several times in the area, and this morning I managed some slightly fuzzy pictures.
According to Journey North, there is one full or partial albino in 30,000 robins.