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The site was identified as internationally important for bird conservation in 2021 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
Short-crested Coquette Lophornis brachylophus	CR	resident (2020–2021)	29 individuals	A1
White-tailed Hummingbird Eupherusa poliocerca	NT	resident (2019)	56 individuals	A1
Lilac-crowned Amazon Amazona finschi	EN	resident (2018)	109 individuals	A1
Orange-fronted Parakeet Eupsittula canicularis	VU	resident (2018)	35 individuals	A1

Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2021. The most recent assessment (2023) is shown below.

State (condition of the key species' habitats)
Habitat	Quantity (% remaining)	Quality (% carrying capacity)	Result
Forest	good (>90%)	good (>90%)	favourable

Pressure (threats to the key species and/or their habitats)
Threat	Timing	Scope	Severity	Result
Pollution	happen­ing now	some of popul­ation/area (10–49%)	slow deteri­oration (1–10% over 3 gener­ations)	medium
Climate change and severe weather	likely in short term (within 4 years)	some of popul­ation/area (10–49%)	slow deteri­oration (1–10% over 3 gener­ations)	medium
Agricultural expansion and intensification	happen­ing now	few individ­uals/small area (<10%)	no deteri­oration (<1% over 3 gener­ations)	low
Biological resource use	happen­ing now	few individ­uals/small area (<10%)	no deteri­oration (<1% over 3 gener­ations)	low

Response (conservation actions taken for the key species and/or their habitats)
Designation	Planning	Action	Result
Little/none of site covered (<10%)	No manage­ment plan exists, but the manage­ment planning process has begun	Some limited conservation initiatives are in place	low

Year	Protected Area	Designation (management category)	% coverage of IBA
1999	Areas de Conservación Comunitaria Sierra de Atoyac y Sierra Madre del Sur.	Other (-)	3

Habitat	% of IBA	Habitat detail
Forest	82	Montane broadleaf evergreen; Pine; Pine-oak; Tropical deciduous; Tropical semi-deciduous

Land use	% of IBA
agriculture	18
forestry	major (>10)
rangeland/pastureland	minor (<10)

Comunal/Ejidal
Privado.

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Recommended citation
BirdLife International (2025) Important Bird Area factsheet: Sierra de Atoyac y Bosques de Niebla de la Costa Grande (Mexico). Downloaded from https://datazone.birdlife.org/site/factsheet/sierra-de-atoyac-y-bosques-de-niebla-de-la-costa-grande-iba-mexico on 15/01/2025.