Why Ravens Share by Bernd Heinrich and John Marzluff Keywords food sharing, altruism, avian vocalizations, avian displays Abstract Young ravens work together to find and protect food.
Single ravens find food sources and then lead others to the location, where they feed as a group.
The young birds must feed together to fend off local adults. Sharing by ravens depends largely on communication. That juvenile relays the location of the carcass to a roost of other ravens, and the group flies to the carcass and overthrows the resident adults. That cooperation helps young ravens eat consistently, even when food runs scarce.