Estero Cardonal

IBA Criteria

Year of most recent IBA criteria assessment: 2015

Populations of IBA trigger species
Species Current IUCN Red List Category Season Year(s) of estimate Population estimate IBA Criteria Triggered
Reddish Egret Egretta rufescens NT resident 2010-2011 90 individuals A1
Wilson's Plover Charadrius wilsonia LC resident 2010 314 individuals A4i
Snowy Plover Charadrius nivosus NT non-breeding 2010-2012 218 individuals A1, A4i
Heermann's Gull Larus heermanni NT non-breeding 2009 300 individuals A1
Least Tern Sternula antillarum LC breeding 2010 4,000 individuals A4i
Forster's Tern Sterna forsteri LC non-breeding 2009-2011 1,500 individuals A4i
Elegant Tern Thalasseus elegans NT non-breeding 2009-2011 9,398 individuals A1, A4i
A4iii Species group - waterbirds n/a - 2009-2011 20,000-49,999 individuals A4iii

Note: This table presents the IBA criteria triggered and the species that triggered then at the time of assessment, the current IUCN Red List category may vary from that which was in place at that time.

For more information about the IBA assessment process and criteria please click here


IUCN Habitat Habitat detail Extent (% of site)
Forest Mangrove -
Shrubland Scrub -
Marine Intertidal -
Marine Coastal/Supratidal -
For further information about the habitat classification please click here.

Land ownership

Zona Federal Marítimo Terrestre 

Recommended citation
BirdLife International (2021) Important Bird Areas factsheet: Estero Cardonal. Downloaded from on 26/01/2021.