Although carrion crows and hooded crows are almost indistinguishable genetically, they avoid mating with each other. Researchers have now identified a mutation that appears to contribute to this ...

Carrion crows are all black, while hooded crows have patches of gray. Each group prefers to mate with their own color. It sounds like what humans would call racism, ...

A hooded crow is knocking on a bedroom window in the early morning, interrupting the owner’s beauty-sleep. It’s a frequent complaint at this time of year when birds are establishing breeding ...

image: All-black carrion crow nestlings from a German population west of the hybrid zone. When crossing the zone, plumage colouration changes rapidly to the grey-coated hooded type. view more ...

[The researchers] first trained hooded crows on several tasks in which they had to match items that were the same as one another. The crows were presented with a tray containing three cups.

Alexandra Rösch is a woman living in Berlin who maintains a YouTube channel dedicated to her two hooded crow pals, Kräri and Kruu. Naturally, then, Rösch has learned a thing or two (or four ...