Adult black-crowned night heron standing above nest on leafy branch. Image note: side view.

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.

Young great blue heron standing in nest. Image note: large, good.

Young great blue heron standing in nest. Image note: full size of plate.

Egret chicks in nest just hatching.

Egret chicks in nest just hatching.