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Location Mali, Tombouctou
Central coordinates 3o 55.00' West  16o 13.00' North
IBA criteria A1, A4i, A4iii
Area 18,900 ha
Altitude 260 m
Year of IBA assessment 2001





Site description Lac Horo is a semi-permanent wetland located 60 km south-west of the town of Goundam at the northern end of the Inner Delta of the Niger, some 20 km south-west of Lac Télé (site ML004), but not directly connected with it. Under natural conditions the lake retained flood water from the Niger throughout the dry season in years of good rainfall, but otherwise dried out completely by April. Now the lake is separated from the river by a dam and sluice gate through which the flow of water from the river is controlled. The sluice is opened in mid-November to allow flood water to fill the lake and closed again when the desired level is reached. The lake edges support beds of Typha sp. and Polygonum senegalensis and open water is colonized by Nymphaea sp. and Vossia cuspidata.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Northern Pintail Anas acuta winter  1985  27,600 individuals  A4i  Least Concern 
Fulvous Whistling-duck Dendrocygna bicolor winter  1984  23,000 individuals  A4i  Least Concern 
Garganey Anas querquedula winter  1985  31,270 individuals  A4i  Least Concern 
Ferruginous Duck Aythya nyroca winter  1987  5,600 individuals  A1, A4i  Near Threatened 
Great Egret Casmerodius albus winter  1999  560 individuals  A4i  Least Concern 
Black-winged Stilt Himantopus himantopus winter  1978  1,600 individuals  A4i  Least Concern 
Black-tailed Godwit Limosa limosa winter  1985  6,200 individuals  A4i  Near Threatened 
Ruff Philomachus pugnax winter  1978  32,000 individuals  A4i  Least Concern 
Caspian Tern Sterna caspia winter  1979  2,000 individuals  A4i  Least Concern 
White-winged Tern Chlidonias leucopterus winter  1980  3,000 individuals  A4i  Least Concern 
Yellow-breasted Barbet Trachyphonus margaritatus resident  1997    Least Concern 
Chestnut-bellied Starling Lamprotornis pulcher resident  1997    Least Concern 
A4iii Species group - waterbirds winter  unknown  A4iii   

Protected areas

Protected area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)  
Delta Intérieur du Niger Wetlands of International Importance (Ramsar) 4,119,500 protected area contains site 18,900  

Habitats

IUCN habitat Habitat detail Extent (% of site)
Artificial - terrestrial   22%
Wetlands (inland)   11%
Shrubland   18%
Forest   48%

Land use

Land-use Extent (% of site)
agriculture -
fisheries/aquaculture -
nature conservation and research -
water management -

Other biodiversity None known to BirdLife International.

Related state of the world's birds case studies

References Jones (1993), Skinner (1987).

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Recommended citation  BirdLife International (2014) Important Bird Areas factsheet: Lac Horo. Downloaded from http://www.birdlife.org on 19/04/2014

To provide new information to update this factsheet or to correct any errors, please email BirdLife