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• Text account
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• Reference and further resources

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
Sharp-tailed Tyrant Culicivora caudacuta	LC	resident	1998-2007	present	A1
Strange-tailed Tyrant Alectrurus risora	VU	resident	1998-2007	present	A1
Ochre-breasted Pipit Anthus nattereri	VU	resident	1998-2007	present	A1
Chestnut Seedeater Sporophila cinnamomea	VU	breeding	1998-2007	present	A1, A2, A3
Marsh Seedeater Sporophila palustris	EN	passage	1998-2007	present	A1, A2, 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.

Pressure (threats to the trigger species and/or their habitats)
Threat	Timing	Scope	Severity	Result
Agricultural expansion and intensification	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
Little/none of site covered (<10%)	No management planning has taken place	Very little or no conservation action taking place	negligible

Habitat1	Habitat detail	% of IBA
Grassland	Campo grassland	47
Shrubland	Scrub	26
Forest	Tropical deciduous forest	21
Savanna	Savanna	2
Wetlands (inland)		2

1. IUCN Habitat classification.

Land use	% of IBA
agriculture	2

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Estero Ñu Guazú - General Artigas (Paraguay). Downloaded from https://datazone.birdlife.org/site/factsheet/estero-ñu-guazú--general-artigas-iba-paraguay on 23/11/2024.