Black-crowned night heron at nest with tules in the background.

Black-crowned night heron on nest. Image note: large size.

An adult black-crowned night heron at its nest with an open mouth. Image note: side view.

Black-crowned night heron nest and four eggs.

Young great blue herons standing in a nest in the tules with their heads and necks stretched up.

Young great blue heron standing in a nest in the tules.

Great blue herons in a colony. Two birds just leaving.

A young great blue heron standing in its nest. Image note: near view.

Young great blue herons standing at a nest in the tules.

Young great blue herons in a colony. A few cormorants are intermixed.