Family Herons (Ardeidae)

Endangered

Japanese Night-heron (Gorsachius goisagi)


Taxonomy

French: Bihoreau goisagi German: Rotscheitelreiher Spanish: Martinete japonés
Taxonomy:

Nycticorax goisagi

Temminck

, 1836,

Japan

.

Probably most closely related to G. melanolophus. Monotypic.

Distribution:

Breeds in S Japan on Honshu, Shikoku and possibly Kyushu; recently found breeding in Jeju Is, S Korea#R; one breeding report from Taiwan, and has been recorded in spring and summer in Russia (Primorye and Sakhalin). Winters from Ryukyu Is to Philippines.

Descriptive notes

49 cm; wingspan 87 cm. Similar to G. melanolophus, but lacks black cap and long crest, has darker drabber brown head, neck and upper body (richer chestnut-brown in... read more

Voice

Gives croaking “buo, buo” when feeding or at nest, slow, repetitive and somewhat owl-like, mainly... read more

Habitat

Rivers and swamps in thickly forested areas, also farms and rice paddies and bamboo forest on... read more

Food and feeding

Very little known. Apparently mainly crabs and other crustaceans; also insects, ground and scarabid beetles, earthworms and small fish;... read more

Breeding

Very little known. Eggs recorded in May–Jun and Jul (latter perhaps second or replacement clutch). Solitary or in small groups. Nests... read more

Movements

Some birds sedentary, but vast majority of population seems to migrate S in Sept/Oct, returning in... read more

Status and conservation

ENDANGERED. Overall population estimated at 600–1700 individuals within an overall range of 35,800 km², but this may be an underestimate. Only six confirmed... read more

Recommended citation

Martínez-Vilalta, A., Motis, A. & Kirwan, G.M. (2017). Japanese Night-heron (Gorsachius goisagi). In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from https://www.hbw.com/node/52711 on 22 November 2017).