A Bird of Two Colors

Related to shearwaters and petrels, the Northern Fulmar will eat just about anything it finds on the surface of the ocean, from fish and squids to dead whales. Fulmars are polymorphic, that is to say they come in more than one color. This difference is independent of sex and age. The reason for their color variation remains a mystery. Learn more about polymorphism from UWM.edu. Find out more about the Northern Fulmar at Cornell's AllAboutBirds.

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