William L. Finley in the top of a tree to photograph a red-tailed hawk nest.

Nest of a red-tailed hawk in the branches of a sycamore tree.

Herman Bohlman climbing a eucalyptus tree to photograph a red-tailed hawk nest.

Two golden eagle downy young in nest. William Finley on limb to the side of the nest. Image note: long way of plate, regular lens, good, third series.

Two golden eagle downy young in nest. William Finley on limb to the side of the nest. Image note: regular lens, third series. “Downy young of the Golden Eagle” Copyright 1905.

Herman Bohlman perched on limb in tree photographing an eagle’s nest. Image note: regular lens, view from ground, soft.

View of canyon and golden eagle nest.

Golden eagle nest and eggs. Image note: regular lens, upright plate, soft, best. “Aerie of Golden Eagle” Copyright 1905.

Two golden eagle downy young in nest with heads raised. Image note: close, three quarters front view, black background, third series.

Golden eagle nest and eggs. Image note: near view, long way of plate, telephoto lens. Copyright 1905, H. T. Bohlman, W. L. Finley.