Juliet Vickery has received funding from the UK government through the Darwin Initiative. Viola Ross-Smith and David Noble of the British Trust for Ornithology helped write this article. The red list ...

For instance, researchers use the backyard sightings that users submit to Project FeederWatch —a joint program run by the Cornell Lab of Ornithology and Birds Canada —to track long-term changes in ...

Types of Birds: Did you know? Scientists now estimate there are around 11,000 bird species worldwide with far more than the 9,000–10,000 once believed. Thanks to genetic research, reclassification, ...