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.

A young Cassin's vireo on the edge of its nest. Image note: small. Note on envelope credits image to Olaus Murie.

A young Cassin's vireo on the edge of its nest. Image note: medium, light struck. Note on envelope credits image to Olaus Murie.

A western winter wren nest.

The deserted nest of a yellow warbler.

An adult lutescent warbler with young in the fork of an arrow wood. Image note: best.

An adult black-throated gray warbler feeding young. Bird on left gets the worm.