Comments for: What color is a blue jay?

Posted Jan. 10, 2014, at 6:19 a.m.
Last modified Jan. 10, 2014, at 7:27 a.m.

Blue jays are not blue. At least, they’re not blue in the way that a cardinal is red. There are two types of color in birds, pigmented and structural. The cardinal is red because its feathers really are red. They are loaded with pigments called carotenoids. These pigments are also …

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