Imperial National Wildlife Refuge


IBA Justification

The site was identified as internationally important for bird conservation in 2013 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 List Season (year/s of estimate) Size IBA criteria
Black Rail Laterallus jamaicensis EN resident (-) present A1

IBA Protection

Year Protected Area Designation (management category) % coverage of IBA
- Cibola National Wildlife Refuge (IV) 32
1941 Imperial National Wildlife Refuge (IV) 67
1990 Imperial Refuge Wilderness (Ib) 50
1990 Colorado River Access (V) 1


Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Imperial National Wildlife Refuge (USA). Downloaded from https://datazone.birdlife.org/site/factsheet/imperial-national-wildlife-refuge-iba-usa on 26/12/2024.