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 ...

“The Cuckoo” is a silent nature film from the 1930s that examines the unusual and somewhat ruthless reproductive behavior of the cuckoo bird. The film documents how cuckoos lay their eggs in other ...

Nests are generally thought of as a bird’s home, but it is more appropriate to consider them a nursery for raising baby birds. S.K. Winnicki, a Ph.D. candidate in avian evolutionary ecology at the ...

To lure swiftlets, whose saliva-built nests fetch high prices in China, people in Borneo compete to build them the most luxurious accommodations: safe, clean, dark and with pools for bathing. By ...