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 ...

Birds exhibit a wide variety of fascinating nesting and offspring-rearing behaviors throughout their lifecycle. Against the ...

Birds have evolved to fit particular environments. Eggs have evolved along with the birds. The eggs that birds will lay this spring will vary in shape and color to facilitate successful hatching in a ...

The American Robin might become a paranoid bird, given the number of creatures trying to fool it. Scientists have known for quite some time that a parasite-type bird exists: the brown-headed cowbird.

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 ...

These dramatic photos show a robin and cuckoo in the throes of a vicious fight. Taken in Kirkcudbright, Scotland, the images show the pair grappling with each other as the Robin 'instinctively knows ...

Walking along a river trail recently, some birding friends and I stopped to stare in astonishment at an unusual sight, a hummingbird flitting near the base of a big oak. Almost at ground level, she ...

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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 ...