• Summary
• Text account
• Data table and detailed info
• Map
• Reference and further resources

The site was identified as important in 2008 because it was regularly supporting significant populations of the species listed below, meeting ('triggering') IBA criteria.

Populations meeting IBA criteria ('trigger species'):

Species	Current IUCN Red List Category	Season	Year(s)	Population estimate at site	IBA criteria met
Straight-billed Reedhaunter Limnoctites rectirostris	NT	resident	1992-2006	90 individuals	A1, A2
Black-and-white Monjita Xolmis dominicanus	VU	resident	1992-2006	90 individuals	A1
Saffron-cowled Blackbird Xanthopsar flavus	EN	resident	1986	90 individuals	A1

The current IUCN Red List category may differ from that which was valid at the time of IBA criteria assessment (2008).

State (condition of the trigger species' habitats)
Habitat	Habitat detail	Reference area (ha)	Actual area (ha)	Habitat quantity (% remaining)	Habitat quality (carrying capacity)	Result
Grassland		0	0	good (> 90%)	good (> 90%)	favourable

Pressure (threats to the trigger species and/or their habitats)
Threat level 1	Threat level 2	Timing	Scope	Severity	Result
Agricultural expansion and intensification	wood and pulp plantations (includes afforestation) - agro-industry plantations	happening now	whole area/population (>90%)	moderate to rapid deterioration	very high
Energy production and mining	mining and quarrying	happening now	whole area/population (>90%)	moderate to rapid deterioration	very high

Response (conservation actions taken for the trigger species and/or their habitats)
Protected-area designation	Management planning	Other conservation action	Result
Little/none of site covered (<10%)	No management plan exists but the management planning process has begun	Unknown	negligible

For more information about IBA conservation status, please click here

Protected area (PA)	PA designation	PA area (ha)	Relationship of PA with IBA	Overlap of PA with IBA (ha)
Quebrada de los Cuervos	Municipal Reserve	400	protected area contained by site	400
Quebrada de los Cuervos	Paisaje Protegido	4,413	protected area contained by site	0
Quebrada de los Cuervos	Protected Natural Area	366	protected area contained by site	366

Habitat (IUCN level 1)	Habitat detail	Extent (% of site)
Forest		-
Grassland	Campo grassland	-

For more information about the IUCN Habitat classification, please click here.

Land-use	Extent (% of site)
rangeland/pastureland	-
tourism/recreation	-

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Recommended citation
BirdLife International (2023) Important Bird Area factsheet: Quebradas de Treinta y Tres. Downloaded from http://datazone.birdlife.org/site/factsheet/quebradas-de-treinta-y-tres-iba-uruguay on 30/11/2023.