• 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
Heermann's Gull Larus heermanni	NT	resident	2015	200 individuals	B1a

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

Year	Protected Area	Designation	% overlap with IBA
2000	Islas del Golfo de California	Área de Protección de Flora y Fauna	100

Tenencia de la tierra: Federal.

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Isla San Ildefonso (Mexico). Downloaded from https://datazone.birdlife.org/site/factsheet/isla-san-ildefonso-iba-mexico on 23/11/2024.