Landscape view of a lake with birds’ nests and eggs in the distance.

A sage thrasher nest with three eggs.

A western grebe nest and three eggs. A dead bird is lying near the nest.

A western grebe nest and three eggs. A dead bird is lying near the nest.

A sora rail nest and eggs. Image note: copy negative of an image taken by Dr. Kellogg.

Landscape view of a lake with birds’ nests and eggs in the distance.

Herman Bohlman showing a camera to Dallas Lore Sharp. Dallas Lore Sharp Jr. looks on from the side. A fourth unidentified man is setting up a tripod to the right of the image. Several nests with eggs are...

Unmounted lantern slide of three eggs in a nest in a fir tree.

Hand-colored, mounted lantern slide of an egg in a nest on a rock cliff.

Shefeldt's junco nest with four eggs. Note on envelope credits image to Alex Walker.