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The night herons are medium-sized herons, 58–65 cm, in the genera Nycticorax, Nyctanassa, and Gorsachius.The genus name Nycticorax derives from the Greek for "night raven" and refers to the largely nocturnal feeding habits of this group of birds, and the croaking crow-like, almost like a barking sound, call of the best known species, the black-crowned night heron.
Hruska and collaborators resurrected the genus Calherodius Peters, 1931 to contain two night herons (the white-backed night heron and the white-eared night heron) that were previously placed in Gorsachius. The western cattle egret (Bubulcus ibis) was embedded in the genus Ardea. The eastern cattle egret (Bubulcus coromandus) was not sampled.
The larger white-eared and white-backed night herons are darker, with distinctive white markings on the face and neck in the former, and an entirely black head in the latter. Their behavior, especially that of the white-eared night heron, is relatively poorly known compared to that of other night herons, but they nest alone or in small groups ...
Nycticorax is a genus of night herons.The name Nycticorax means "night raven" and derives from the Ancient Greek νύκτος, nuktos "night" and κοραξ, korax, "raven".It refers to the largely nocturnal feeding habits of this group of birds, and the croaking crow-like call of the best known species, the black-crowned night heron.
The white-backed night heron seems to be sedentary, but it has been observed in some circumstances to have migrated to locations with heavy rain. [14] White-backed night herons are known foragers, meaning they search for food primarily along waterways. They have been observed to eat fish, amphibians, mollusks and insects. [10]
Black-crowned night-heron. Order: Pelecaniformes Family: Ardeidae. The family Ardeidae contains the herons, egrets, and bitterns. Herons and egrets are medium to large wading birds with long necks and legs. Bitterns tend to be shorter necked and more secretive.
Herons and egrets are medium to large wading birds with long necks and legs. Bitterns tend to be shorter necked and more wary. Members of Ardeidae fly with their necks retracted, unlike other long-necked birds such as storks, ibises and spoonbills. Black-crowned night-heron, Nycticorax nycticorax; Striated heron, Butorides striata (V)
The yellow-crowned night heron is a rather stocky wading bird, ranging from 55 to 70 cm (1 ft 10 in – 2 ft 4 in) and from 650 to 850 g (1.43–1.87 lb), the females being a little smaller than the males. The yellow-crowned night heron has a wingspan ranging from 101 to 112 cm (3 ft 4 in – 3 ft 8 in). [10]