• Summary
• Text account
• Data table and detailed info
• Map
• Reference and further resources

The site was identified as important in 2021 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
Horned Grebe Podiceps auritus	VU	winter	2017	37 individuals	A1
Ridgway's Rail Rallus obsoletus	NT	resident	2014	45	B1a
Reddish Egret Egretta rufescens	NT	resident	2011	71 individuals	B1a
Double-crested Cormorant Nannopterum auritum	LC	resident	2013	4,008 individuals	B3a
Wilson's Plover Charadrius wilsonia	LC	winter	2011	1,540	A4, B3a
Snowy Plover Charadrius nivosus	NT	winter	2011	110 individuals	B1a, B3a
Black Skimmer Rynchops niger	LC	winter	2013	302 individuals	B3a
Heermann's Gull Larus heermanni	NT	resident	2014	1,320 individuals	B1a
Elegant Tern Thalasseus elegans	NT	winter	2010	7,000 individuals	A4, B1a, B3a
Royal Tern Thalasseus maximus	LC	winter	2010	500 individuals	B3a
A4iii Species group - seabirds	n/a	-	2010	22,002 individuals	B3b

1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2021) may differ.

Habitat1	Habitat detail	% of IBA
Marine Coastal/Supratidal		37
Forest	Mangrove	5

1. IUCN Habitat classification.

Land use	% of IBA
fisheries/aquaculture	major (>10)

Privada
Comunal/Ejidal
Zona Federal Marítimo Terretre

---

Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Estero Santa Cruz (Mexico). Downloaded from https://datazone.birdlife.org/site/factsheet/estero-santa-cruz-iba-mexico on 22/11/2024.