Great blue heron nest and eggs.

Nest of an eared grebe, uncovered.

Nest of an eared grebe, uncovered.

Two western nighthawk eggs on the ground.

Two western nighthawk eggs on the ground.

Bendire thrasher nest and eggs in a cholla cactus.

Cactus wren nest in a cholla cactus with four eggs. Entrance enlarged.

Two very young golden eagle chicks in nest. Image note: telephoto, second series.

Phainopepla nest containing two eggs in the fork of a mesquite tree.

Two cormorant nests with young and eggs.