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The site was identified as internationally important for bird conservation in 2007 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
Solitary Tinamou Tinamus solitarius	NT	resident (-)	present	A1, A3
Saffron Toucanet Pteroglossus bailloni	NT	resident (-)	present	A1, A3
Robust Woodpecker Campephilus robustus	LC	resident (-)	present	A3
Yellow-browed Woodpecker Piculus aurulentus	NT	resident (-)	present	A1, A3
Helmeted Woodpecker Celeus galeatus	VU	resident (1998–2007)	present	A1, A3
White-spotted Woodpecker Veniliornis spilogaster	LC	resident (-)	present	A3
Streak-capped Antwren Terenura maculata	LC	resident (-)	present	A3
Spot-backed Antshrike Hypoedaleus guttatus	LC	resident (-)	present	A3
Large-tailed Antshrike Mackenziaena leachii	LC	resident (-)	present	A3
Tufted Antshrike Mackenziaena severa	LC	resident (-)	present	A3
Dusky-tailed Antbird Drymophila malura	LC	resident (-)	present	A3
White-shouldered Fire-eye Pyriglena leucoptera	LC	resident (-)	present	A3
Rufous Gnateater Conopophaga lineata	LC	resident (-)	present	A3
Rufous-breasted Leaftosser Sclerurus scansor	LC	resident (-)	present	A3
Lesser Woodcreeper Xiphorhynchus fuscus	LC	resident (-)	present	A3
Rufous-capped Spinetail Synallaxis ruficapilla	LC	resident (-)	present	A3
Blue Manakin Chiroxiphia caudata	LC	resident (-)	present	A3
Bare-throated Bellbird Procnias nudicollis	NT	resident (1998–2007)	present	A1, A3
Greenish Schiffornis Schiffornis virescens	LC	resident (-)	present	A3
Russet-winged Spadebill Platyrinchus leucoryphus	VU	resident (1998–2007)	present	A1, A3
Sao Paulo Tyrannulet Phylloscartes paulista	NT	resident (-)	present	A1, A3
Bay-ringed Tyrannulet Phylloscartes sylviolus	LC	resident (-)	present	A1, A3
Southern Bristle-tyrant Pogonotriccus eximius	NT	resident (-)	present	A1, A3
Grey-hooded Flycatcher Mionectes rufiventris	LC	resident (-)	present	A3
Eared Pygmy-tyrant Myiornis auricularis	LC	resident (-)	present	A3
Drab-breasted Bamboo-tyrant Hemitriccus diops	LC	resident (-)	present	A3
Greenish Tyrannulet Phyllomyias virescens	LC	resident (-)	present	A3
Rufous-crowned Greenlet Hylophilus poicilotis	LC	resident (-)	present	A3
Chestnut-bellied Euphonia Euphonia pectoralis	LC	resident (-)	present	A3
Blue Seedeater Amaurospiza moesta	LC	resident (-)	present	A1, A3
Green-headed Tanager Tangara seledon	LC	resident (-)	present	A3
Ruby-crowned Tanager Tachyphonus coronatus	LC	resident (-)	present	A3
Chestnut-headed Tanager Thlypopsis pyrrhocoma	LC	resident (-)	present	A3

Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2007. The most recent assessment (2011) is shown below.

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

Habitat	% of IBA	Habitat detail
Forest	84	Tropical semi-deciduous forest; Tropical semi-evergreen forest
Savanna	3	Savanna
Grassland	1	Campo grassland

Land use	% of IBA
agriculture	12

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Serranías de San Joaquín (Paraguay). Downloaded from https://datazone.birdlife.org/site/factsheet/serranías-de-san-joaquín-iba-paraguay on 22/12/2024.