"--What are you doing up here? she said aloud to the heron. But she knew by the look of him that his nature was anchorite and mystic. Like all of his kind, he was a solitary pilgrim, strange in his ways and governed by no policy or creed common to flocking birds. Ada wondered that herons could tolerate each other close enough to breed. She had seen a scant number in her life, and those so lonesome as to make the heart sting on their behalf. Exile birds. Everywhere they were seemed far from home."
Cold Mountain, page 193; by Charles Frazier