Mauritius (E), Réunion (B), Western Indian Ocean (B).
Reunion. Formerly also Mauritius.
Rarity Status
Currently this species is not classified as a rarity in this country OR information has not been updated.
Population
Estimated population is 90 - 800 (2010) and decreasing.
Status CR
Declining, most likely due to predation by feral cats and rats, but also mortality caused by urban light sources.
For more information see BirdLife International Species Factsheet.
Mascarene Petrel (Pseudobulweria aterrima) [XC836648]
by id from Reunion Island, France (uncertain)
Mascarene Petrel (Pseudobulweria aterrima) [XC836651]
by Life+Petrels: Reunion National Park, SEOR, Reunion University from Reunion Island, France (uncertain)
Subspecies
Sometimes placed in genus Pseudobulweria. Considered by some authors to be subspecies of Tahiti Petrel (Pseudobulweria rostrata). External morphology and skeletal aspects indicate closely related.
Considered by some authors to be subspecies of Tahiti Petrel (Pseudobulweria rostrata).
No subspecies.
Similar Species
Like Bulwer's Petrel (Bulweria bulwerii) and Jouanin's Petrel (Bulweria fallax) but more robust, smaller with heavier bill, shorter tail and lacking wing-bar. Dark phase of Trindade Petrel (Pterodroma arminjoniana) has longer wings.
References
See References.
BirdLife International Species Factsheet