Four young western robins, two on edge of nest and two on fir bough.

Four young western robins, two on edge of nest and two on fir bough. Image note: plate thin.

Two young western robins on the edge of a nest. Image note: front view, bills crossed.

A young western robin on the edge of a nest with open mouth. Image note: not very good.

Two young russet-backed thrushes in nest among ferns.

Two young russet-backed thrushes, one sitting on nest among ferns.

A bluebird at its nest hole in an apple tree.

A bluebird at its nest hole in an apple tree on the Jenning's place.

Young Sierra hermit thrush chicks in their nest near Paradise River in Mount Rainier National Park.

A Sierra hermit thrush and three young chicks in their nest in Mount Rainier National Park.