Each spring, birds across America are in full voice. Cardinals chatter, sparrows sing and warblers warble. Birdsong lifts the ...

New research shows that variation in mating behaviors, parental care and differences in ornamentation of the sexes in bird ...

New Zealand's kakapo have laid 256 eggs, and around 100 of them have hatched, providing a bright spot in a decades-long ...

All living things have limited energy and resources, and face trade-offs between competing priorities,” observed the study’s ...

Scientists have developed a fecal-sampling method that can help identify illegally captured wild birds in Latin America that ...

This week’s best wildlife photographs from around the world ...