7 Birds that can remember human faces for years and surprise scientists with their intelligence

Birds are far more intelligent than they are often given credit for. A landmark study by researchers at the University of Washington, published in the peer-reviewed journal Proceedings of the Royal Society B, found that American crows can recognise individual human faces and remember them for years, particularly after positive or negative encounters. The study also revealed that crows can pass this information to other crows through social learning. Beyond crows, organisations and publications have documented remarkable cognitive abilities in other bird species, including strong memory, pro...