Three Arch Rocks National Wildlife Refuge (USA)

Three Arch Rocks National Wildlife Refuge

Current view: Data table and detailed info

IBA Justification

The site was identified as important in 2012 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
Common Murre Uria aalge	LC	breeding	1974-2009	199,515 individuals	A4ii

1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2012) may differ.

IBA Protection

Year	Protected Area	Designation	% overlap with IBA
1907	Three Arch Rocks	National Wildlife Refuge	2
1970	Three Arch Rocks	Wilderness Area	93
1970	Oregon Island	Wilderness	9

Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Three Arch Rocks National Wildlife Refuge (USA). Downloaded from https://datazone.birdlife.org/site/factsheet/three-arch-rocks-national-wildlife-refuge-iba-usa on 23/11/2024.