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The site was identified as internationally important for bird conservation in 2010 because it was regularly supporting significant populations of the species listed below, meeting ('triggering') IBA criteria.

Populations meeting IBA criteria ('trigger species') at the site:

Species	Red List	Season (year/s of estimate)	Size	IBA criteria
Andean Condor Vultur gryphus	VU	resident (2008)	40 birds	A1
Moustached Turca Pteroptochos megapodius	LC	resident (-)	present	A2
Crag Earthcreeper Ochetorhynchus melanurus	LC	unknown (-)	present	A2
Dusky-tailed Canastero Pseudasthenes humicola	LC	resident (-)	present	A2
Chilean Mockingbird Mimus thenca	LC	resident (-)	present	A2

Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2010. The most recent assessment (2014) is shown below.

State (condition of the trigger species' habitats)
Habitat	Quantity (% remaining)	Quality (% carrying capacity)	Result
Rocky areas (eg. inland cliffs, mountain peaks)	-	good (>90%)	good

Pressure (threats to the trigger species and/or their habitats)
Threat	Timing	Scope	Severity	Result
No known threats	past (and unlikely to return) and no longer limiting	few indivi­duals/small area (<10%)	no or slight decline (<1% over 3 gener­ations)	low

Response (conservation actions taken for the trigger species and/or their habitats)
Designation	Planning	Action	Result
Some of area covered (10–49%)	No management planning has taken place	Very little or no conservation action taking place	very low

Habitat	% of IBA	Habitat detail
Rocky areas (eg. inland cliffs, mountain peaks)	-

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Valle del Yeso (Chile). Downloaded from https://datazone.birdlife.org/site/factsheet/valle-del-yeso-iba-chile on 23/12/2024.