Research from Poland adds to evidence from Latin American countries that compounds in used cigarette butts ward off parasites in bird nests.

City birds are using cigarette butts in their nests to reduce parasites, but the toxic tradeoff may come with hidden risks ...

Ari and Junianto began hunting birds as children in the foothills of Java’s Mount Slamet, near their home in Sambirata village. Trapping birds for the illegal wildlife trade became their main ...

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 and the environment. Instead ...

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 ...