As more and more "historical" checklists are added to the platform, birds we've lost now mingle with those still hanging on.

NPR's Scott Detrow speaks with Matthew Medler of the Cornell Lab of Ornithology about the best bird sounds of 2025 from their vast collection of recordings, and why their selections made the list.

When we think of large birds, we might picture swans, ostriches, or eagles. But which bird is the biggest? Well, it depends on what you mean by big! When considering the "biggest" bird species, ...