Male plumbeous gnatcatcher on the edge of nest after feeding young. Image note: tail blurred.

Male plumbeous gnatcatcher on the edge of nest after feeding young. Image note: side view, good.

Bendire thrasher nest and eggs in a cholla cactus.

General view of a cholla cactus showing the nest of a cactus wren.

General view of a cholla cactus showing the nest of a cactus wren.

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

Cactus wren nest in a cholla cactus. Adult cactus wren perched near entrance with food for young.

View of golden eagle young in nest. Image note: rear lens, third series.

Two golden eagle downy young in nest. Image note: across plate, regular lens, second series.

Two golden eagle downy young in nest. Image note: medium size, telephoto, first series, negative broken and repaired.