Two young black terns in a nest, one eating a minnow.

Avocet on nest. Image note: larger size.

Herman T. Bohlman and William L. Finley photographing a tern’s nest among the tules.

Avocet on nest. Image note: smaller size.

Three young black terns on a nest. Image note: front view.

Two young avocets crouching in their nest.

Two young avocets crouching in their nest. Image note: side view.

Three Caspian terns at nest. One with fish and one with mouth open. Image note: good.

Two young gulls in their nest.

A Wilson's phalarope sitting on its nest in the grass.