Overview

Distribution

Range

Locally in Africa south of the Sahara.

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Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
Behaviour The movements of this species are very little known (del Hoyo et al. 1992), although it appears to be sedentary, possibly making partial seasonal migrations related to the onset of the rains (del Hoyo et al. 1992, Kushlan and Hancock 2005). It breeds in solitary pairs (del Hoyo et al. 1992), the breeding season varying geographically, but usually coinciding with the rains or the early dry season when floods are at their highest (Brown et al. 1982, del Hoyo et al. 1992, Kushlan and Hancock 2005). The species feeds singly or in pairs and is strictly nocturnal (Brown et al. 1982, del Hoyo et al. 1992), requiring secure day-roosting spots such as high trees or very dense marsh and forest vegetation (Kushlan and Hancock 2005). Habitat The species inhabits densely vegetated forest (Kushlan and Hancock 2005), frequenting tree-fringed streams, mangroves, islands in large rivers and lakes, the wooded margins of marshes (del Hoyo et al. 1992, Hockey et al. 2005) and occasionally reedbeds (del Hoyo et al. 1992). Diet Its diet is little known, but may consist of small fish, amphibians, molluscs, crustaceans, flying ants, flies and other insects (del Hoyo et al. 1992). Breeding site The nest is a stick platform (Hockey et al. 2005), usually well hidden and built low over water in trees or bushes (Hockey et al. 2005), occasionally away from water in trees, bushes, reedbeds, mangroves, or on rocks, rock piles on islands (Hockey et al. 2005, Kushlan and Hancock 2005) or rocky shores in caves (Kushlan and Hancock 2005), but very rarely in exposed positions (Hockey et al. 2005).

Systems
  • Terrestrial
  • Freshwater
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Source: IUCN

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Conservation

Conservation Status

IUCN Red List Assessment


Red List Category
LC
Least Concern

Red List Criteria

Version
3.1

Year Assessed
2012

Assessor/s
BirdLife International

Reviewer/s
Butchart, S. & Symes, A.

Contributor/s

Justification
This species has an extremely large range, and hence does not approach the thresholds for Vulnerable under the range size criterion (Extent of Occurrence <20,000 km2 combined with a declining or fluctuating range size, habitat extent/quality, or population size and a small number of locations or severe fragmentation). The population trend appears to be stable, and hence the species does not approach the thresholds for Vulnerable under the population trend criterion (>30% decline over ten years or three generations). The population size may be moderately small to large, but it is not believed to approach the thresholds for Vulnerable under the population size criterion (<10,000 mature individuals with a continuing decline estimated to be >10% in ten years or three generations, or with a specified population structure). For these reasons the species is evaluated as Least Concern.
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Population

Population Trend
Stable
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Threats

Major Threats
The species is threatened in southern Africa by habitat loss and degradation. Overgrazing, increased water offtake, soil erosion and poor river management are leading to siltation, reduced river flows, and increased water turbidity, and riparian vegetation is being cleared for agriculture (del Hoyo et al. 1992, Barnes 2000). Utilisation This species is hunted and traded at traditional medicine markets in Nigeria (Nikolaus 2001).
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Wikipedia

White-backed Night Heron

The White-backed Night Heron (Gorsachius leuconotus) is a species of heron in the Ardeidae family. This relatively small and dark night heron is found throughout a large part of sub-Saharan Africa. It was formerly placed in the genus Nycticorax.

References[edit]

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