Blackjack Peninsula of Aransas National Wildlife Refuge


IBA Justification

The site was identified as important in 2008 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
Whooping Crane Grus americana EN winter 2007 266 individuals A1, A4i

1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2008) may differ.


IBA Protection

Year Protected Area Designation % overlap with IBA
- Rattlesnake Island, Ayres Island, And Roddy Island Audubon Society Preserve or Sanctuary <1
- Dunham Point Audubon Society Preserve or Sanctuary <1
1937 Aransas National Wildlife Refuge 100
1937 Aransas National Wildlife Refuge 100
2006 Mission-Aransas National Estuarine Research Reserve 97


Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Blackjack Peninsula of Aransas National Wildlife Refuge (USA). Downloaded from https://datazone.birdlife.org/site/factsheet/blackjack-peninsula-of-aransas-national-wildlife-refuge-iba-usa on 23/11/2024.