In the evenings, they fly loudly over our cities, circle over parks, and suddenly settle by the hundreds in bare trees. For some, it seems like a scene from a horror movie–for biologists, it’s a ...

All black, often noisy, and gregarious, all those blackbirds. Some seem smaller, some more brownish, and some are rather large. To most folks, that may be all we notice about them. But there is a ...