Palmyra Atoll

IBA Criteria

Year of most recent IBA criteria assessment: 2012

Populations of IBA trigger species
Species Current IUCN Red List Category Season Year(s) of estimate Population estimate IBA Criteria Triggered
Red-tailed Tropicbird Phaethon rubricauda LC breeding 2002 261 individuals A4ii
Red-footed Booby Sula sula LC breeding 2002 25,000 individuals A4ii
Bristle-thighed Curlew Numenius tahitiensis NT non-breeding 2012 200 individuals A1, A4i
Sooty Tern Onychoprion fuscatus LC breeding 2002 876,000 individuals A4i
A4iii Species group - seabirds n/a breeding 2002 26,489 A4iii
A4iii Species group - waterbirds n/a breeding 1973-2007 883,570 individuals A4iii

Note: This table presents the IBA criteria triggered and the species that triggered then at the time of assessment, the current IUCN Red List category may vary from that which was in place at that time.

For more information about the IBA assessment process and criteria please click here

IBA Protection

Protected Area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)
Palmyra Atoll National Wildlife Refuge 205,173 protected area contains site 385
Pacific Remote Islands Marine National Monument 127,786,000 protected area contains site 0

Recommended citation
BirdLife International (2023) Important Bird Areas factsheet: Palmyra Atoll. Downloaded from on 07/02/2023.