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

An adult Vigor's wren with food at the entrance to its nest on the side of a stump in Fulton Canyon.

An adult Vigor's wren with food at the entrance to its nest on the side of a stump in Fulton Canyon.

Two young Vigor's wrens on an alder branch in Fulton Canyon. One bird is blurred.

A Clark’s crow perched on a post in Mount Rainier National Park.

Three orioles on limbs beside their nest near Jim Paul Ranch in southeastern Oregon.

Irene Finley photographing orioles near their nest on the Jim Paul Ranch in southeastern Oregon.

Thurber junco (Oregon snow bird) on nest with open mouth. Image note: contrasty plate.

Cassin’s vireo on nest. A hand showing above.

William L. Finley feeding a Cassin’s vireo on its nest.