Two downy young red-tailed hawks in their nest. Image note: wide angle.

Herman T. Bohlman in a tree photographing a red-tailed hawk's nest. Image note: negative cracked and repaired.

Herman T. Bohlman climbing to a red-tailed hawk's nest in winter.

Herman T. Bohlman climbing to a red-tailed hawk's nest in winter.

View of a tree showing a red-tailed hawk's nest and Herman T. Bohlman at nest.

An adult black-headed grosbeak in a bush. Image note: small.

A male black-headed grosbeak in a tree top. Image note: small.

An adult black-headed grosbeak in a tree top. Image note: small.

Three young black-headed grosbeaks on arrow wood. Image note: back view, head turned.

Three young black-headed grosbeaks on arrow wood. Image note: large.