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| [Note Guidelines] Photographer's Note |
Black-crowned Night Heron
Nycticorax nycticorax
Main features: Small (58-65cm, 0.7-1kg): black crown and back; grey wings and tai; white underparts; eyebrows and lores whitish; bill black slightly curved downward; legs and toes yellow (pinkish-red in breeding); eyes red. Genders look alike.
Juvenile: Very different in appearance: dark brown overall with wings white spotted; head white streaks; underparts white spotted or streaked.
Call: Harsh kwark or kwok, in flight or at roost. But there are many different interpretations of their calls.
In flight: Tucks its neck close to its body and its short legs barely extends beyond its tail; white underparts obvious.
Similar birds: Juveniles look like the juveniles of the Little Heron (Butorides striatus), Cinnamon Bittern (Ixobrychus cinnamomeus); these all lack the Black-crowned's spots on the back, stocky shape and robust bill.
Status in Singapore: Common resident throughout the island including North and South offshore islands (Pulau Ubin and Pulau Tekong).
World distribution: Nearly world-wide, except Australia and Antarctica. Resident on the Asian subcontinent, visitors to the Philippines and Borneo.
Classification: Family Ardeidae. World 65 species, Singapore 17 species. |
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