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

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

A female western bluebird at its hole in the tank house with maggots for young. 46 North 9th st.

A female western bluebird at the edge of its nest in a box with two young showing. Taken at 3rd and Jefferson Sts. Image note: reflected light.

A female western bluebird at its hole in the tank house with food for young. 46 North 9th st.

A female western bluebird at its hole in the tank house. 46 North 9th st. Image note: negative broken and repaired.

Two young russet backed thrushes in their nest. Image taken by Dr. Kellogg. Image note: negative broken and top half of plate missing.

A russet backed thrush at its nest with young inside. Image note: plate showing motion.

A russet backed thrush at its nest with young inside. Image note: plate showing motion.

A russet backed thrush in its nest.