|Gorsachius||magnificus||OR||s, e China|
Gorsachius is a genus of Old World night herons typically found near water in forested regions. These are medium-sized herons which are migratory in the colder parts of their ranges, but otherwise resident. They are the least known, most strictly nocturnal, smallest and overall rarest night herons. Three of the four species are found in East, South and South-east Asia, while the last species, the White-backed Night Heron, is found in sub-Saharan Africa. The Japanese and Malayan Night Herons resemble each other, being relatively short-billed and overall brown with a dark line from the throat to the upper belly. 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. While generally nocturnal and crepuscular, they have been recorded feeding during the day in clouded weather
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|size min.:||52||cm||size max.:||54||cm|
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A key threat is forest clearance and fragmentation, primarily as a result of demands for timber and agricultural land in an extremely densely populated region. Although the species can nest in human modified habitats, vulnerability of monocultures to pest invasion is a risk. Human disturbance may cause this secretive bird to abandon eggs while incubating. Hunting is a major additional threat, even inside protected areas, and it may be particularly vulnerable when nesting. In recent years, a relatively high number of specimens have been collected for scientific purposes. Direct habitat damage for dam construction, river regulation and road building has driven birds from known sites, but counter-intuitively it also creates new habitats in some cases. The impact of chemical pesticides and fertilizers is unknown.