Thurber junco (Oregon snow bird) on nest. Image note: upright plate, thin.

Pyrrhuloxia sitting in nest with open mouth. Image note: 3/4 front view, large size.

Pyrrhuloxia on nest with mouth open. Image note: side view, large size, clear.

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

Phainopepla nest containing two eggs in the fork of a mesquite tree.

Steller's jay nest and eggs in a fir tree.

Thurber junco (Oregon snow bird) in nest with mouth open. Image note: dense plate, plate turning yellow.

Gambel’s sparrow nest and eggs. Taken in Jennings woods.

Thurber junco (Oregon snow bird) sitting on the edge of its nest. Image note: back view.

Vermilion flycatcher nest and three eggs on limb of a mesquite tree.