Both male and female black-crowned night-herons look similar, and their adult plumage is distinctive and easy to recognize. When watching these waders, look for: Photo – Alert Black-Crowned Night-Heron © Paul Stein Photo – Juvenile Black-Crowned Night-Heron © USFWS It is easy to learn how to recognize black-crowned night-herons in different postures and plumages, and the faster a birder can accurately identify these common waders, the faster they will be able to tell when they’re seeing something completely different. Photo – Flying Black-Crowned Night-Heron © Jerry Kirkhart