Chickens have huge personalities and are very social creatures. They form cliques and hang out together. Chickens have highly intricate pecking orders; within the flock they will designate members to certain tasks depending on their capabilities.
If a chicken is good at a certain call, it might become the sentry and watch out for danger or predators. Other chickens will assume the role of calling the hens into the coop to sleep for the night. Other chickens will be extremely good at finding food and they will alert the others about it, making excellent scouts.
Chickens are fun to photograph!