Dear Pet Talk: I don’t have pets but keep active birdfeeders, so all the birds are my “pets in the wild.” Why do robins lay blue eggs? — Bird Lover Dear Bird Lover: I concur with you about wild birds ...

NEW YORK, May 27 (UPI) --A new study answers the question: Why are robin eggs blue? The answer: sun protection. According to new research, the light blue-green color of bird eggs helps facilitate just ...

A male robin will be more diligent in caring for its young if the eggs its mate lays are a brighter shade of blue. Queen's University biology professor Bob Montgomerie has been studying robins on and ...

In the spring, robins living on an Illinois tree farm sat on some unusual eggs. Alongside the customary brilliant blue ovoids they had laid were some unusually shaped objects. Although they had the ...

People have always wondered why many birds lay bright blue eggs. David Lahti of the City University of New York and Dan Ardia of Franklin & Marshall College tested the hypothesis that pigmentation ...