In a robin couple, a male brings his female partner nesting material as she constructs the robins’ nest. The female builds the cup-like nest with mud as its foundation and lines it with grasses, twigs ...

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 ...

If you have seen a nest with bright blue eggs, you may be wondering what the unique pigmentation does. Now, researchers in a new study have discovered that the color could shield harmful sunlight, ...

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 ...

DEAR PET TALK: I don’t have pets but keep active birdfeeders, so all the birds are my “pets in the wild.” I have always wondered: Why do robins lay blue eggs? BIRD LOVER DEAR BIRD LOVER: I concur with ...

An experiment by evolutionary biologists offers new insights into birds’ brains. Three robin eggs in a nest, along with a double-pyramid imposter.Credit...M. Hauber Supported by By Veronique Greenwood ...