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. William L. Finley at the base of the tree. Image note: plate turning yellow.

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.

Herman T. Bohlman climbing to a hawk's nest. Eggs just pipped, probably hatched the next day. First visit.

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

Two young red-tailed hawks on nest. They left the nest on June 1, one week later. Image note: best plate, copyrighted.

A single red-tailed hawk perched on its nest with a carp. Image note: large, rear lens.

Two red-tailed hawks standing in their nest with a carp. Image note: blocked out, good, last series.

Two young red-tailed hawks standing on their nest. Image note: blocked out, last series.