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The site was identified as internationally important for bird conservation in 2008 because it was regularly supporting significant populations of the species listed below, meeting IBA criteria.

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

Species	Red List	Season (year/s of estimate)	Size	IBA criteria
Eared Quetzal Euptilotis neoxenus	LC	resident (1995)	present	A1
Thick-billed Parrot Rhynchopsitta pachyrhyncha	EN	resident (1995)	present	A1

Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2008. The most recent assessment (2023) is shown below.

State (condition of the key species' habitats)
Habitat	Quantity (% remaining)	Quality (% carrying capacity)	Result
Forest	moderate (70–90%)	moderate (70–90%)	unfavourable

Pressure (threats to the key species and/or their habitats)
Threat	Timing	Scope	Severity	Result
Agricultural expansion and intensification	happen­ing now	most of popul­ation/area (50–90%)	moderate deteri­oration (10–30% in 3 gener­ations)	high
Biological resource use	happen­ing now	most of popul­ation/area (50–90%)	moderate deteri­oration (10–30% in 3 gener­ations)	high
Natural system modifications	happen­ing now	most of popul­ation/area (50–90%)	moderate deteri­oration (10–30% in 3 gener­ations)	high
Pollution	happen­ing now	most of popul­ation/area (50–90%)	moderate deteri­oration (10–30% in 3 gener­ations)	high
Climate change and severe weather	happen­ing now	most of popul­ation/area (50–90%)	moderate deteri­oration (10–30% in 3 gener­ations)	high

Response (conservation actions taken for the key species and/or their habitats)
Designation	Planning	Action	Result
Most of site (50–90%) covered (including the most critical parts for important bird species)	No manage­ment plan exists, but the manage­ment planning process has begun	Very little or no conservation action taking place	low

Habitat	% of IBA	Habitat detail
Forest	90	Temperate coniferous; Temperate deciduous; Temperate mixed

Land use	% of IBA
agriculture	-
rangeland/pastureland	-
forestry	-
urban/industrial/transport	-

Tenencia de la tierra: Ejidal, privada y federal.

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Recommended citation
BirdLife International (2025) Important Bird Area factsheet: Parte Alta del Río Humaya (Mexico). Downloaded from https://datazone.birdlife.org/site/factsheet/parte-alta-del-río-humaya-iba-mexico on 23/01/2025.