AR217
Bahía San Blas, Bahía Anegada y Bahía Unión


IBA Justification

The site was identified as important in 2022 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
Chilean Flamingo Phoenicopterus chilensis NT breeding 2019-2020 1,754 nests A4, B1a, B3a
Olrog's Gull Larus atlanticus NT breeding 2009 1,052 breeding pairs A4, B1a, B3a
Sandwich Tern Thalasseus sandvicensis LC breeding 2013 195 breeding pairs B3a
Royal Tern Thalasseus maximus LC breeding 2013 841 breeding pairs B3a
Yellow Cardinal Gubernatrix cristata EN resident 2018-2019 21-23 individuals A1

1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2022) may differ.


IBA Protection

Year Protected Area Designation % overlap with IBA
- San Blas y Refugio de Vida silvestre Complementario Multiple Use Reserve 100
2001 Bahía San Blas Refugio de Vida Silvestre 8
2001 Bahía San Blas Reserva Natural de Uso Múltiple 1


Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Bahía San Blas, Bahía Anegada y Bahía Unión (Argentina). Downloaded from https://datazone.birdlife.org/site/factsheet/bahía-san-blas-bahía-anegada-y-bahía-unión-iba-argentina on 22/11/2024.