Spotting a regal, statuesque great blue heron is always a treat. Learn facts about these birds' nests, calls and more.

26 great blue heron and 16 double-crested cormorants. “As a result of these takings, according to the Yellowstone Valley Audubon Society, the number of fledglings from known osprey nests within ...

Chris Leahy, an expert with the Massachusetts Audubon Society who wrote a major ... to a subsequent revival and expansion of the great blue heron population. Beavers were hunted and trapped ...