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 ...

Look at that spot-chested young robin, hopping blithely across the lawn, stopping here and there as it searches for a meal. And take note of a young blue jay perched on a branch, gulping down a ...

DEAR JOAN: We are excited that a robin red breast has laid four blue eggs with brown speckles in a nest in the middle of one of our rose bushes. Mommy and Daddy Robin spend a lot of time with the nest ...

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, ...

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 ...

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 ...