William L. Finley in the top of a sycamore tree photographing heron nests.

Great blue herons flying over nest tree.

Great blue herons flying over nest tree.

Adult great blue heron near nest. “The Peaceful Threshold” Copyright 1905.

Adult great blue heron perched on a branch near nest below. Image note: negative broken and repaired, best. Copyright 1905.

A single young great blue heron in nest. Herman Bohlman with a camera is visible in the background.

William L. Finley in a tree photographing great blue heron nests. A young heron is perched on a branch nearby. Image note: rear lens.