Yellow-crowned Night-Heron

The Yellow-crowned Night-Heron is a stocky, medium-sized heron with an overall slate-grey body and a striking head pattern: a black face marked with a bold white cheek stripe, and a pale yellow to cream-colored crown that gives the species its name. During the breeding season, adults grow several long white plumes from the back of the head.

Compared to its relative the Black-crowned Night-Heron, this species has proportionally longer legs and a heavier, stouter bill, adaptations suited to its specialized diet of crustaceans, especially crabs, which it crushes and manipulates with practiced skill.

Key field marks

• Overall slate-grey body
• Black face with a bold white stripe along the cheek
• Pale yellowish-cream crown
• Longer legs and stouter bill than the Black-crowned Night-Heron

Similar species

• Black-crowned Night-Heron: adult has a solid black crown and back with paler grey wings, lacking the striped facial pattern
• Juveniles of both night-heron species are brownish and heavily spotted, best separated by leg length (longer in Yellow-crowned) and bill thickness

The bold black-and-white face stripe combined with an all-grey body is the clearest mark for adult Yellow-crowned Night-Herons.

Range and habitat

Yellow-crowned Night-Herons are found across the southeastern and south-central United States, Mexico, Central America, the Caribbean, and parts of South America, favoring coastal marshes, mangroves, swamps, and wooded wetlands, and are notably tolerant of urban and suburban settings in some regions.

Migration

Northern populations in the United States migrate south for winter to warmer coastal areas, Mexico, and Central America, while populations in tropical parts of the range are largely resident.

Behavior

More active during the day than the Black-crowned Night-Heron, though still often crepuscular, Yellow-crowned Night-Herons forage by walking slowly and deliberately, especially in areas with fiddler crabs or crayfish.

Voice

The call is a loud, harsh "quock," somewhat higher-pitched than the Black-crowned Night-Heron's call.

Feeding

This species specializes heavily on crustaceans, particularly crabs and crayfish, which it captures with its stout bill and often manipulates or dismembers before swallowing; it also eats other invertebrates, small fish, and amphibians.

Nesting and breeding

Yellow-crowned Night-Herons nest colonially or in loose groups, sometimes solitarily, building stick nests in trees near water; both parents incubate and feed the typically three to five pale bluish-green eggs.