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close| Location | El Salvador, La Unión,San Miguel |
| Central coordinates | 88o 3.30' West 13o 18.30' North |
| IBA criteria | A3 |
| Area | 7,184 ha |
| Altitude | 100 - 250m |
| Year of IBA assessment | 2007 |
Ornithological information El lago atrae las concentraciones más altas de "Lesser Scaup" (Aythya affinis) registradas en El Salvador (1300 individuos vistos en un solo día). Así también hay especies residentes raras como "Masked Duck" (Nomonyx dominicus), "Muscovy Duck" (Cairina moschata) y "Least Bittern" (Ixobrychus exilis).
Site description Este IBA (7,200 ha) incluye el lago más grande del oriente de El Salvador, los pantanos y potreros aledaños, asi como ambientes asociados de bosques inundables. Contiene además al sur una muestra de bosque seco en acantilados del Cerro Nariz del Diablo.
Populations of IBA trigger species
| Species | Season | Period | Population estimate | Quality of estimate | IBA Criteria | IUCN Category |
|---|---|---|---|---|---|---|
| Orange-fronted Parakeet Aratinga canicularis | unknown | - | - | - | A3 | Least Concern |
| Lesser Ground-cuckoo Morococcyx erythropygus | unknown | - | - | - | A3 | Least Concern |
| Pacific Screech-owl Megascops cooperi | unknown | - | - | - | A3 | Least Concern |
| Nutting's Flycatcher Myiarchus nuttingi | resident | - | - | - | A3 | Least Concern |
| White-throated Magpie-jay Calocitta formosa | unknown | - | - | - | A3 | Least Concern |
| Rufous-naped Wren Campylorhynchus rufinucha | unknown | - | - | - | Least Concern | |
| Banded Wren Thryothorus pleurostictus | unknown | - | - | - | A3 | Least Concern |
| White-lored Gnatcatcher Polioptila albiloris | unknown | - | - | - | Least Concern | |
| Painted Bunting Passerina ciris | unknown | - | - | - | Near Threatened |
Habitats
| IUCN habitat | Habitat detail | Extent (% of site) |
|---|---|---|
| Forest | Gallery & riparian; Tropical lowland evergreen; Tropical semi-deciduous | 35% |
| Shrubland | Scrub | 4% |
| Wetlands (inland) | Freshwater lakes & pools | 26% |
| Grassland | Low, seasonally wet | 22% |
| Artificial landscapes (terrestrial) | Other urban & industrial areas; Perennial crops, orchards & groves | 7% |
| Other | 8% |
Protection status Falta de protección formal.
References Dicky & van Rossem. 1938. The birds of El Salvador. // Herrera, N. et al. 2003. Conteo de Anatidos en Humedales de El Salvador, temporada 2002-2003. MARN-AECI. //Marshall, J. T. Jr. 1943. Additional information concerning the birds of El Salvador. Condor 45:21-33.//SalvaNATURA. 2007. Base de datos de Flora y Fauna (Aves). SalvaNATURA. San Salvador, El Salvador.
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Recommended citation BirdLife International (2013) Important Bird Areas factsheet: Lake Olomega. Downloaded from http://www.birdlife.org on 25/05/2013
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