Analysis of 216 extinct species by biologists found birds endemic to islands, occupied ecologically specific niche, lacking flight, with large bodies and sharply angled wings were the ones likely to ...

An international study has analyzed the distribution of 115 species of birds in spring and 72 that spend the winter in different cities. The study provides information on how to design urban areas ...

A critically endangered 'Akikiki that study lead author Kyle Kittelberger photographed on Kauai in 2022. Credit: Kyle Kittelberger Looking to inform the conservation of critically endangered bird ...

Variation in seven example traits provided in BIRDBASE. Bars indicate the number of species within categories or subsets of each trait: (A) average body mass, (B) primary habitat, (C) primary diet, (D ...

Though previous research has shown that bird populations are declining across North America, a new study is the first to show that the pace of loss has picked up speed since the mid-1980s in three ...

Imagine zooming out on a giant family tree that includes every bird you have ever seen. Ostriches sprint across open plains, hummingbirds hover at flowers, penguins slice through cold seas, and eagles ...

Looking to inform the conservation of critically endangered bird species, University of Utah biologists completed an analysis identifying traits that correlate with all 216 bird extinctions since 1500 ...