A gull in flight catching a piece of bread from the air. Ships are visible in the distance. Image used in “American Birds.

A young black tern swallowing a fish.

A young black tern on its nest. Image note: side view.

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

Caspian tern nest and three eggs.

Irene Finley with a camera on a tripod photographing a royal tern colony.

Irene Finley with a camera on a tripod photographing a royal tern colony.

Irene Finley crouching with eggs in her hands in the middle of a royal tern colony.

Irene Finley crouching with eggs in her hands in the middle of a royal tern colony.

Irene Finley crouching with eggs in her hands in the middle of a royal tern colony.