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The site was identified as important 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 List1	Season	Year(s)	Size	IBA criteria
Solitary Tinamou Tinamus solitarius	NT	resident	1998-2000	rare	A1, A3
Scale-throated Hermit Phaethornis eurynome	LC	resident	-	present	A3
Purple-crowned Plovercrest Stephanoxis loddigesii	LC	resident	-	present	A3
Slaty-breasted Wood-rail Aramides saracura	LC	resident	-	present	A3
Black-capped Screech-owl Megascops atricapilla	LC	resident	-	present	A3
Southern Surucua Trogon Trogon surrucura	LC	resident	-	present	A3
Rufous-capped Motmot Baryphthengus ruficapillus	LC	resident	-	present	A3
Buff-bellied Puffbird Notharchus swainsoni	LC	resident	-	present	A3
Red-breasted Toucan Ramphastos dicolorus	LC	resident	-	present	A3
Spot-billed Toucanet Selenidera maculirostris	LC	resident	-	present	A3
Robust Woodpecker Campephilus robustus	LC	resident	-	present	A3
Yellow-browed Woodpecker Piculus aurulentus	NT	resident	1998-2000	rare	A1, A3
Helmeted Woodpecker Celeus galeatus	VU	resident	1998-2000	rare	A1, A3
Yellow-fronted Woodpecker Melanerpes flavifrons	LC	resident	-	present	A3
White-spotted Woodpecker Veniliornis spilogaster	LC	resident	-	present	A3
Pileated Parrot Pionopsitta pileata	LC	resident	-	present	A3
Blue-winged Macaw Primolius maracana	NT	resident	1998-2000	uncommon	A1
Streak-capped Antwren Terenura maculata	LC	resident	-	present	A3
Spot-backed Antshrike Hypoedaleus guttatus	LC	resident	-	present	A3
Tufted Antshrike Mackenziaena severa	LC	resident	-	present	A3
White-shouldered Fire-eye Pyriglena leucoptera	LC	resident	-	present	A3
Rufous Gnateater Conopophaga lineata	LC	resident	-	present	A3
Lesser Woodcreeper Xiphorhynchus fuscus	LC	resident	-	present	A3
Ochre-breasted Foliage-gleaner Anabacerthia lichtensteini	LC	resident	-	present	A3
White-eyed Foliage-gleaner Automolus leucophthalmus	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	1998-2000	common	A1, A3
Greenish Schiffornis Schiffornis virescens	LC	resident	-	present	A3
Eared Pygmy-tyrant Myiornis auricularis	LC	resident	-	present	A3
Ruby-crowned Tanager Tachyphonus coronatus	LC	resident	-	present	A3
Chestnut-headed Tanager Thlypopsis pyrrhocoma	LC	resident	-	present	A3

1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2007) may differ.

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.

State (condition of the trigger species' habitats)
Habitat	Quantity (% remaining)	Quality (% carrying capacity)	Result
Forest	moderate (70-90%)	poor (40-69%)	very unfavourable

Pressure (threats to the trigger species and/or their habitats)
Threat	Timing	Scope	Severity	Result
Biological resource use	happening now	whole area/population (>90%)	very rapid to severe deterioration	very high
Invasive and other problematic species and genes	happening now	whole area/population (>90%)	very rapid to severe deterioration	very high

Response (conservation actions taken for the trigger species and/or their habitats)
Protected areas	Management plan	Other action	Result
Whole area of site (>90%) covered by appropriate conservation designation	No management planning has taken place	Very little or no conservation action taking place	low

Year	Protected Area	Designation	% overlap with IBA
2001	Arroyo Blanco	Reserva Natural - Privado	100

Habitat1	Habitat detail	% of IBA
Forest	Tropical semi-deciduous forest, Tropical semi-evergreen forest, Montane broadleaf evergreen forest	88
Grassland	Steppe & dry calcareous grassland	1
Savanna	Savanna	1

1. IUCN Habitat classification.

Land use	% of IBA
agriculture	10

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Arroyo Blanco (Paraguay). Downloaded from https://datazone.birdlife.org/site/factsheet/arroyo-blanco-iba-paraguay on 22/11/2024.