Data Zone
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 |
|---|---|---|---|---|---|
| Reddish Egret Egretta rufescens | NT | resident | 2012 | 149 individuals | A4, B1a, B3a |
| Brown Pelican Pelecanus occidentalis | LC | resident | 2017 | 4,145 individuals | A4, B3a |
| Heermann's Gull Larus heermanni | NT | resident | 2015 | 800 individuals | B1a |
| Elegant Tern Thalasseus elegans | NT | winter | 2015 | 150 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 |
|---|---|---|---|
| 1978 | Área de Protección de Flora y Fauna Islas del Golfo de California | Flora and Fauna Protection Area | 100 |
| Habitat1 | Habitat detail | % of IBA |
|---|---|---|
| Marine Intertidal | 69 | |
| Shrubland | 21 | |
| Other | 8 | |
| Marine Neritic | 2 |
| Land use | % of IBA |
|---|---|
| fisheries/aquaculture | - |
Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Isla Alcatraz (Mexico). Downloaded from
https://datazone.birdlife.org/site/factsheet/isla-alcatraz-iba-mexico on 22/11/2024.