||White-crested Tiger-heron, White-crested Tiger Heron, White-crested Bittern
||Butor à crête blanche, Onoré à huppe blanche
Tigriornis leucolophus Sibley and Monroe (1990, 1993)
Tigriornis leucolophus BirdLife International (2004)
Tigriornis leucolophus BirdLife International (2000)
Tigriornis leucolophus Dowsett and Forbes-Watson (1993)
||del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A. and Fishpool, L.D.C. 2014. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Lynx Edicions BirdLife International.
||Gender agreement of species name follows David and Gosselin (2002b).
|Red List Category & Criteria:
||Butchart, S. & Symes, A.
||Dodman, T., Dowsett-Lemaire, F., Rainey, H. & Dowsett, R.
||Malpas, L., Harding, M., Pilgrim, J.
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 is not known, but the population is not believed to be decreasing sufficiently rapidly to approach the thresholds 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.
|Previously published Red List assessments:|
- 2009 – Least Concern (LC)
- 2008 – Least Concern (LC)
- 2005 – Least Concern (LC)
- 2004 – Data Deficient (DD)
- 2000 – Data Deficient (DD)
- 1994 – Lower Risk/least concern (LR/lc)
- 1988 – Lower Risk/least concern (LR/lc)
|Range Description:||Tigriornis leucolopha is uncommon to rare through the African equatorial rainforests, with breeding records from the Gambia, Senegal, Guinea-Bissau, Guinea, Sierra Leone, Liberia, Côte d'Ivoire, Cameroon, Gabon and the Congo. It is perhaps commonest in parts of Gabon, lower Congo and northern Democratic Republic of Congo (DRC) (Brown et al. 1982, Hancock and Kushlan 1984), and has been described as widespread in Ghana (F. Dowsett-Lemaire and R. Dowsett in litt. 2005). It is difficult to estimate a total population size due to the secretive nature of this species (Hancock and Kushlan 1984), but it is now known from at least 62 sites (H. Rainey in litt. 2003).|
Angola (Angola); Benin; Cameroon; Central African Republic; Congo; Congo, The Democratic Republic of the; Côte d'Ivoire; Equatorial Guinea; Gabon; Gambia; Ghana; Guinea; Guinea-Bissau; Liberia; Nigeria; Senegal; Sierra Leone; Togo
|♦ Continuing decline in area of occupancy (AOO):||Unknown|
|♦ Extreme fluctuations in area of occupancy (AOO):||No||♦ Estimated extent of occurrence (EOO) - km2:||3870000|
|♦ Continuing decline in extent of occurrence (EOO):||Unknown||♦ Extreme fluctuations in extent of occurrence (EOO):||No|
|♦ Continuing decline in number of locations:||Unknown|
|♦ Extreme fluctuations in the number of locations:||No|
|Range Map:||Click here to open the map viewer and explore range.|