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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
Greater Rhea Rhea americana	NT	resident (-)	present	A1
Brushland Tinamou Nothoprocta cinerascens	LC	resident (-)	present	A3
Quebracho Crested Tinamou Eudromia formosa	LC	resident (-)	present	A3
Chaco Chachalaca Ortalis canicollis	LC	resident (-)	present	A3
Chaco Owl Strix chacoensis	NT	resident (-)	present	A3
Crowned Solitary Eagle Buteogallus coronatus	EN	resident (1998–2007)	present	A1
Cream-backed Woodpecker Campephilus leucopogon	LC	resident (-)	present	A3
Black-bodied Woodpecker Hylatomus schulzii	NT	resident (-)	present	A1, A3
Black-legged Seriema Chunga burmeisteri	LC	resident (-)	present	A3
Crested Gallito Rhinocrypta lanceolata	LC	resident (-)	present	A3
Great Rufous Woodcreeper Xiphocolaptes major	LC	resident (-)	present	A3
Scimitar-billed Woodcreeper Drymornis bridgesii	LC	resident (-)	present	A3
Chaco Earthcreeper Tarphonomus certhioides	LC	resident (-)	present	A3
Crested Hornero Furnarius cristatus	LC	resident (-)	present	A3
Cinereous Black-tyrant Knipolegus striaticeps	LC	resident (-)	present	A3
Many-colored Chaco Finch Saltator multicolor	LC	resident (-)	present	A3
Black-capped Warbling-finch Microspingus melanoleucus	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.

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

Pressure (threats to the trigger species and/or their habitats)
Threat	Timing	Scope	Severity	Result
Invasive and other problematic species and genes	happe­ning now	whole of popul­ation/area (>90%)	moderate decline (10–30% over 3 gener­ations)	very high
Agricultural expansion and intensification	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
Little/none of area covered (<10%)	Unknown	Unknown	very low

Habitat	% of IBA	Habitat detail
Forest	79	Tropical deciduous forest
Shrubland	5	Scrub
Savanna	1	Savanna

Land use	% of IBA
agriculture	16

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Estancia Gran Siete (Paraguay). Downloaded from https://datazone.birdlife.org/site/factsheet/estancia-gran-siete-iba-paraguay on 23/12/2024.