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

The site was identified as internationally important for bird conservation in 2024 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
Parana Antwren Formicivora acutirostris	NT	resident (2023)	min 96 birds	B1a

Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2024. The most recent assessment (2024) is shown below.

Pressure (threats to the trigger species and/or their habitats)
Threat	Timing	Scope	Severity	Result
Residential and commercial development	happe­ning now	most of popul­ation/area (50–90%)	moderate decline (10–30% over 3 gener­ations)	high

Response (conservation actions taken for the trigger species and/or their habitats)
Designation	Planning	Action	Result
Not assessed	Not assessed	Not assessed	not assessed

Year	Protected Area	Designation (management category)	% coverage of IBA
1992	Estação Ecológica Do Guaraguaçu	Estação Ecológica (Ia)	27
1999	Atlantic Forest Southeast Reserves	World Heritage Site (natural or mixed) (UA)	15

Habitat	% of IBA	Habitat detail
Wetlands (inland)	minor (<10)	Freshwater marshes/swamps

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Rio Guaraguaçu (Brazil). Downloaded from https://datazone.birdlife.org/site/factsheet/rio-guaraguaçu-iba-brazil on 26/12/2024.