They forage together and probably enjoy greater security as a large group because of more eyes on the lookout for predators.

Paired birds commonly forage together, with the male following the female.

They all know one another, if not by name at least by sight, and friends sometimes forage together - at their peril.

A pair may forage together and they will often join mixed-species foraging flocks.

Young generally forage together in family groups; older bucks tend to travel alone or with other bucks.

The groups consist of adults of both sexes, who forage together.

During this time, they forage for food together, and the train often changes composition, as some males leave and other join the pursuit.

Breeding colonies often forage together to several miles away from the breeding site.

These flocks become smaller during the breeding season, but retain a small group of non-breeders that forage together over a wide area.

This often leads to the formation of monogamous couples, who sleep and forage together.