A partial loss of pigmentation in a human or other animal, resulting in white, pale, or patchy coloration of the skin, hair, fur, or feathers but not the eyes.
An animal condition characterized by reduced pigmentation.
The American Heritage® Dictionary of the English Language, 5th Edition • More at Wordnik
And a blonde crow (you can’t make see else)
Yeah forget the owl, what’s his deal?
Leucism
leucism /loo͞′kĭz″əm/
noun
The American Heritage® Dictionary of the English Language, 5th Edition • More at Wordnik