A lutescent warbler nest and eggs.

A lutescent warbler nest and eggs in a thick mass of arrow wood.

A lutescent warbler nest and eggs in a thick mass of arrow wood.

A black-throated gray warbler nest and eggs. Image note: good.

Bushtit and flycatcher nests in vine maples.

A flicker nest with seven eggs.

Dr. Kellogg and William L. Finley photographing a flicker's nest and eggs.

A red-tailed hawk's nest and eggs, showing the depth and structure of the nest.

A red-tailed hawk's nest and eggs. Taken on the first visit to the nest. Eggs just pipped, probably hatched the next day.

Herman T. Bohlman climbing to a hawk's nest. Eggs just pipped, probably hatched the next day. First visit.