An adult Cassin's vireo at nest with young. Image note: young bird out of focus.

An adult Cassin's vireo at nest with young. Image note: young bird out of focus.

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

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

Irene Finley holding food above a Cassin’s vireo in its nest.

Irene Finley with her finger on the back of a Cassin’s vireo.

Cassin’s vireo on nest. Image note: clear but small.

Cassin’s vireo on nest. Image note: back view.

Irene Finley standing beside a Cassin's vireo in its nest.

Irene Finley standing beside a Cassin's vireo in its nest. Image note: very thin plate.