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Location Ethiopia, Southern Peoples' Region
Central coordinates 38o 1.14' East  7o 30.18' North
IBA criteria A1, A4iii
Area 13,000 ha
Altitude 1,880 m
Year of IBA assessment 1996

Ethiopian Wildlife and Natural History Society

Site description Boyo Wetland is 26 km north of Alaba Kulito, Hadiya Zone. It is in the Bilate river basin that drains from the Gurage highlands south into Lake Abaya. The two main tributaries of the Bilate river, the Guder (which originates in the mountains near the zonal capital Hosana) and the Weira, merge at Boyo wetland. The vegetation of this wetland has not been studied. The site is within one of the most intensely cultivated areas in the country. It is self-supporting in food crops and many other items, and produces much for Addis Ababa.

Key Biodiversity See Box for key species. Small numbers of Falco naumanni appear to pass through the site on spring and autumn passage and a few may overwinter. Circus macrourus is fairly common on spring and autumn passage, with small numbers overwintering. Boyo wetland supports a high concentration of waterbirds. During a one-day survey in April 1996, 62 Grus carunculatus and three Balearica pavonina were recorded. During the same survey, other waterbird counts included Ardeola ralloides (40+), Bubulcus ibis (3,000+), Mesophoyx intermedia (300+), Mycteria ibis (80+), Plegadis falcinellus (1,200+), Threskiornis aethiopicus (150+), Plectropterus gambensis (75+) and several thousand Palearctic waders of various species. Counts covered a maximum of 10% of the total area, and the total number of waterbirds was thus estimated to exceed 20,000.

Non-bird biodiversity: None known to BirdLife International.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Pallid Harrier Circus macrourus passage  frequent  A1  Near Threatened 
Wattled Crane Bugeranus carunculatus non-breeding  1996  62 individuals  A1  Vulnerable 
A4iii Species group - waterbirds unknown  20,000 individuals  unknown  A4iii   

Protected areas

Protected area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)  
Boyo Swamp Controlled Hunting Area 32,694 protected area contains site 13,000  

Land use

Land-use Extent (% of site)
agriculture -
hunting -

References National Water Resources Commission (1987).

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Recommended citation  BirdLife International (2016) Important Bird and Biodiversity Area factsheet: Boyo wetland. Downloaded from on 28/10/2016

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