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Side-by-Side Comparison

คุณสมบัติ	Black-crowned Night Heron	Ascension Night-heron
ชื่อวิทยาศาสตร์	Nycticorax nycticorax	Nycticorax olsoni
อันดับ	Pelecaniformes	Pelecaniformes
วงศ์ตระกูล	Ardeidae	Ardeidae
สถานะการอนุรักษ์	Least Concern	Not Evaluated
ความยาว	—	—
กว้างปีก	57.1 cm (22.5 in)	—
น้ำหนัก	779.425 g (27.49 oz)	624.57 g (22.03 oz)
อาหาร	--	--
จำนวนไข่	1-8	--
Population Trend	—	—

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Habitat Comparison

ถิ่นที่อยู่อาศัยร่วมกัน

🏖️ Coastal

Black-crowned Night Heron only

🌿 Wetland

Ascension Night-heron only

ไม่มี

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สถานะการอนุรักษ์

Least Concern

Black-crowned Night Heron

Not Evaluated

Ascension Night-heron

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About These Birds

Black-crowned Night Heron

The Black-crowned Night Heron is a stocky, medium-sized heron with a distinctive black crown and back, grey wings, and white underparts, found on every continent except Australia and Antarctica. It inhabits a wide range of wetlands including marshes, swamps, rivers, and coastal areas, feeding nocturnally on fish, frogs, invertebrates, and small mammals. It nests colonially in trees or shrubs near water.

Ascension Night-heron

The Ascension Night-heron was a flightless heron known from subfossil remains on Ascension Island in the South Atlantic. Weighing an estimated 624g, it was likely driven to extinction by human activity and introduced predators. It is currently listed as Not Evaluated by conservation assessments.

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