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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
Horned Curassow Pauxi unicornis	CR	resident (2007)	250-999 individuals	A1, A2, A3
Ashy Antwren Myrmotherula grisea	LC	resident (2003)	present	A1, A2, A3
Upland Antshrike Thamnophilus aroyae	LC	resident (2003)	present	A2, A3
White-throated Antpitta Grallaria albigula	LC	resident (2003)	present	A2, A3
Yungas Manakin Chiroxiphia boliviana	LC	resident (2003)	present	A2, A3
Hazel-fronted Pygmy-tyrant Pseudotriccus simplex	LC	resident (2003)	present	A2, A3
Yungas Tody-tyrant Hemitriccus spodiops	LC	resident (2003)	present	A2, A3
Bolivian Tyrannulet Zimmerius bolivianus	LC	resident (2003)	present	A2, A3
Unadorned Flycatcher Myiophobus inornatus	LC	resident (2003)	present	A2, A3
Straw-backed Tanager Tangara argyrofenges	VU	resident (2003)	present	A2, A3
Slaty Tanager Creurgops dentatus	LC	resident (2003)	present	A2, 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 (2014) is shown below.

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%)	rapid deteri­oration (>30% over 3 gener­ations)	very high
Transportation and service corridors	likely in short term (within 4 years)	most of popul­ation/area (50–90%)	rapid deteri­oration (>30% over 3 gener­ations)	high

Response (conservation actions taken for the key species and/or their habitats)
Designation	Planning	Action	Result
Whole area of site (>90%) covered by appropriate conservation designation	A manage­ment plan exists, but it is out of date or not compre­hensive	Some limited conservation initiatives are in place	medium

Habitat	% of IBA	Habitat detail
Forest	major (>10)	Montane broadleaf evergreen forest; Tropical lowland evergreen forest
Wetlands (inland)	-	Rivers; Streams

Land use	% of IBA
nature conservation and research	major (>10)
agriculture	minor (<10)

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Recommended citation
BirdLife International (2025) Important Bird Area factsheet: Yungas Inferiores de Isiboro-Sécure / Altamachi (Bolivia). Downloaded from https://datazone.birdlife.org/site/factsheet/yungas-inferiores-de-isiboro-sécure--altamachi-iba-bolivia on 24/01/2025.