The Fabulous World of Corvids Crows, ravens, jays and magpies - Corvids Click on the crow to hear it caw. Crows, ravens, jays and magpies are all corvids, and are some of the most intelligent of birds. Even if one or two hunters come out again, they aren't fooled. There are documented cases of crows assisting injured members of the flock by distracting predators, and of crows using tools like twigs. They know how to drop clam shells from a height to break them and get at the meat inside.
Crows are social birds that congregate in huge flocks.
While the flock grazes in a field, lookouts will be posted to watch for approaching danger. They'll raise the alarm if humans approach. During the day crows fly around alone or in small groups. Often another crow will answer, and the two will fly off together. At night, crows return to a common roost where thousands of birds gather, sometimes flying as many as 80 miles back home.