AZ Animals on MSN

How Birds Grow, From Hatching to Fledgling to Flight

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

How an Eight-Sided ‘Egg’ Ended Up in a Robin’s Nest

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 ...
Sentinel & Enterprise

Why are robin’s eggs blue? Same reason we bruise

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 ...
The Virginian-Pilot

How an eight-sided ‘egg’ ended up in a robin’s nest on an Illinois tree farm

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 ...