Data Zone
The site was identified as important in 2008 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 |
|---|---|---|---|---|---|
| Greater Rhea Rhea americana | NT | resident | 2001-2003 | < 50 individuals | A1 |
| Chilean Flamingo Phoenicopterus chilensis | NT | passage | 2001-2003 | 50-249 individuals | A1 |
| Sickle-winged Nightjar Eleothreptus anomalus | VU | resident | 2001-2003 | < 50 individuals | A1 |
| Crowned Solitary Eagle Buteogallus coronatus | EN | resident | 1993 | 6 breeding pairs | A1 |
| Bay-capped Wren-spinetail Spartonoica maluroides | LC | resident | 2001-2003 | 50-249 individuals | A1 |
| Bearded Tachuri Polystictus pectoralis | NT | breeding | 2001-2003 | 50-249 individuals | A1 |
| Strange-tailed Tyrant Alectrurus risora | VU | breeding | 2001-2003 | 120 individuals | A1 |
| Dark-throated Seedeater Sporophila ruficollis | NT | passage | 2001-2003 | 50-249 individuals | A1 |
| Rufous-rumped Seedeater Sporophila hypochroma | NT | passage | 2001-2003 | 600 individuals | A1 |
1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2008) may differ.
| Year | Protected Area | Designation | % overlap with IBA |
|---|---|---|---|
| 1967 | Arroyo Ramirez | Reserva de Pesca | <1 |
| 1967 | Boca de la Laguna Herradura | Reserva de Pesca | <1 |
| 1967 | Puerto Dalmacia | Reserva de Pesca | <1 |
| 1971 | Boca del Rio Bermejo | Reserva de Pesca | <1 |
| 2001 | Laguna Oca del Rio Paraguay | UNESCO-MAB Biosphere Reserve | 11 |
Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Valle Fluvial del Río Paraguay (Argentina). Downloaded from
https://datazone.birdlife.org/site/factsheet/valle-fluvial-del-río-paraguay-iba-argentina on 22/11/2024.