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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
Strange-tailed Tyrant Alectrurus risora	VU	resident	1998-2007	uncommon	A1
Chestnut Seedeater Sporophila cinnamomea	VU	passage	1998-2007	rare	A1
Marsh Seedeater Sporophila palustris	EN	passage	1998-2007	rare	A1

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
Transportation and service corridors	happening now	majority/most of area/population (50-90%)	very rapid to severe deterioration	very high
Agricultural expansion and intensification	happening now	some of area/population (10-49%)	very rapid to severe deterioration	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
Savanna	Savanna	54
Forest	Tropical deciduous forest, Tropical semi-deciduous forest, Tropical semi-evergreen forest	34
Wetlands (inland)	Streams	9

1. IUCN Habitat classification.

Land use	% of IBA
agriculture	3

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Arroyos y Esteros (Paraguay). Downloaded from https://datazone.birdlife.org/site/factsheet/arroyos-y-esteros-iba-paraguay on 23/11/2024.