Maria Cristina Tello-Ramos Neighboring groups of birds within the same species can create very different-looking nests — showing that their nest-building choices aren’t solely controlled by instinct ...

A Baltimore oriole nest made of mostly horse hair, and only horse hair, is the best bird nest I have ever seen. It was found in a tree in the yard of a friend. Alex, who showed me the nest, lives on ...

NPR's Scott Simon speaks with biologist Auke-Florian Hiemstra about his study of bird's nests that are made from anti-bird spikes. One human's trash just might be an avian's armoire. Urban birds have ...

Instinct does play a role in nest-building, but so much more seems to be involved. Entwined with instinct are reason, ...

It is spring in the northern hemisphere and birds initiate the remarkable architectural feat of building a home for the young. How is this accomplished? Hormones and Getting in the Mood Much of the ...

A white-browed sparrow weaver inspects a roost under construction, after just receiving some grass brought by another member of its group. (Maria Cristina Tello-Ramos) Neighboring groups of birds ...