{"fact":"Think crows only care about other crows? Think again! They react differently to the calls of familiar jackdaws compared to unfamiliar ones.","context":"Carrion crows’ behavioral response to jackdaw calls tended to be influenced by the familiarity of the caller… Birds responded more to familiar individuals.","source":"Claudia A. F. Wascher; Georgine Szipl; Markus Boeckle; Anna Wilkinson, You sound familiar: carrion crows can differentiate between the calls of known and unknown heterospecifics, 10.1007/s10071-012-0508-8","index":330}