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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 ('triggering') IBA criteria.

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

Species	Red List	Season (year/s of estimate)	Size	IBA criteria
Ocellated Quail Cyrtonyx ocellatus	VU	resident (1995)	present	A3
Wine-throated Hummingbird Selasphorus ellioti	LC	resident (1995)	present	A3
White-eared Hummingbird Basilinna leucotis	LC	resident (1995)	present	A3
Fulvous Owl Strix fulvescens	LC	resident (1995)	present	A3
Resplendent Quetzal Pharomachrus mocinno	NT	resident (1995)	present	A1
Blue-throated Motmot Aspatha gularis	LC	resident (1995)	present	A3
Pine Flycatcher Empidonax affinis	LC	resident (1995)	present	A3
Black-throated Jay Cyanolyca pumilo	LC	resident (1995)	present	A3
Unicolored Jay Aphelocoma unicolor	LC	resident (1995)	present	A3
Rufous-browed Wren Troglodytes rufociliatus	LC	resident (1995)	present	A3
Rufous-collared Thrush Turdus rufitorques	LC	resident (1995)	present	A3
Olive Warbler Peucedramus taeniatus	LC	resident (1995)	present	A3
Black-capped Siskin Spinus atriceps	LC	resident (-)	present	A3
Crescent-chested Warbler Oreothlypis superciliosa	LC	resident (1995)	present	A3
Golden-cheeked Warbler Setophaga chrysoparia	EN	winter (1995)	present	A1
Pink-headed Warbler Cardellina versicolor	LC	resident (1995)	present	A1, A3

Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2008. The most recent assessment (2013) is shown below.

Pressure (threats to the trigger species and/or their habitats)
Threat	Timing	Scope	Severity	Result
Agricultural expansion and intensification	happe­ning now	most of popul­ation/area (50–90%)	rapid decline (>30% over 3 gener­ations)	very high
Biological resource use	happe­ning now	whole of popul­ation/area (>90%)	slow decline (1–10% over 3 gener­ations)	high
Climate change and severe weather	happe­ning now	whole of popul­ation/area (>90%)	slow decline (1–10% over 3 gener­ations)	high

Response (conservation actions taken for the trigger species and/or their habitats)
Designation	Planning	Action	Result
Little/none of area covered (<10%)	No management planning has taken place	Very little or no conservation action taking place	very low

Habitat	% of IBA	Habitat detail
Forest	100	Montane broadleaf evergreen; Tropical coniferous

Land use	% of IBA
agriculture	-

Tenencia de la tierra: Ejidal.

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Cerros de Chalchihuitán (Mexico). Downloaded from https://datazone.birdlife.org/site/factsheet/cerros-de-chalchihuitán-iba-mexico on 23/12/2024.