A flock of birds in flight over a body of water.

A flock of birds in flight.

A flock of birds in flight.

A hummingbird in its nest. Image note: plate not very good.

A hummingbird in its nest. Image note: plate not very good.

A hummingbird in its nest. Image note: plate not very good.

An unidentified bird perched on a skinned deer carcass hanging from a tree. Possibly near the Deschutes River? Note on negative envelope indicates that the image might have been taken by Olaus Murie.

Two young robins in their nest facing opposite directions. Taken in Fulton Canyon.

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

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