Young black skimmer chicks nested in a sand dune.

Young black skimmer chicks nested in a sand dune.

Black skimmers on the beach.

An unidentified person walking down the beach with black skimmers in flight overhead.

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.

Adult black-necked stilt standing in the water. Image note: small size.