Estancia Sombrero

IBA Criteria

Year of most recent IBA criteria assessment: 2007

Populations of IBA trigger species
Species Current IUCN Red List Category Season Year(s) of estimate Population estimate IBA Criteria Triggered
Crowned Solitary Eagle Buteogallus coronatus EN resident 1998-2007 present A1
Bare-throated Bellbird Procnias nudicollis NT resident 1998-2007 present A1
Sharp-tailed Tyrant Culicivora caudacuta VU resident 1998-2007 present A1
Cock-tailed Tyrant Alectrurus tricolor VU resident 1998-2007 present A1
Strange-tailed Tyrant Alectrurus risora VU resident 1998-2007 present A1

Note: This table presents the IBA criteria triggered and the species that triggered then at the time of assessment, the current IUCN Red List category may vary from that which was in place at that time.

For more information about the IBA assessment process and criteria please click here

IBA Monitoring

Most recent IBA monitoring assessment
Year of assessment Threat score (pressure) Condition score (state) Action score (response)
2011 not assessed not assessed negligible
Was the whole site covered? No State assessed by unset
Accuracy of information -


IUCN Habitat Habitat detail Extent (% of site)
Forest Tropical deciduous forest, Tropical semi-deciduous forest, Tropical semi-evergreen forest -
Savanna Savanna -
For further information about the habitat classification please click here.

Land use

Land-use Extent (% of site)
agriculture -
nature conservation and research -
For further information about the land use classification please click here.

Recommended citation
BirdLife International (2022) Important Bird Areas factsheet: Estancia Sombrero. Downloaded from on 02/07/2022.