The Tahiti Petrel, Pterodroma rostrata (Chesser et al. 2011) or Pseudobulweria rostrata (Bretagnolle et al. 1998, Birdlife International 2012, Howell 2012, Dickinson and Remsen 2013), breeds in the Society and Marquesas islands, New Caledonia, and other islands in the South Pacifi Ocean (Villard et al. 2006). It ranges widely in the tropical central Pacifi and is considered a nonbreeding vagrant in Hawaiian waters (Pyle and Pyle 2017). Three of this species’ close relatives of the genus Pseudobulweria are “critically endangered,” and the Tahiti Petrel itself is listed as “near threatened” on the Red List of the International Union for Conservation of Nature (Birdlife International 2012). The Tahiti Petrel is very similar in appearance to the endangered Phoenix Petrel (Pterodroma alba), which has made it diffiult to establish the Tahiti Petrel’s distribution in the north-central Pacifi (King 1970, Spear et al. 1992, 1999, Spear and Ainley 1998, BirdLife International 2016). Early unsubstantiated sight reports of Phoenix or Tahiti Petrels near the Hawaiian Islands include four birds seen during cruises by the U.S. Fish and Wildlife Service in 1964 and 1965 (King 1970) and one or two Tahiti Petrels seen southeast of Hawai’i Island on 5 November 1984 (Spear et al. 1999). The fist Tahiti Petrel record accepted by the American Ornithologists’ Union for North America was based on photographs taken in 2009 off Costa Rica (Obando-Calderon et al. 2010, Chesser et al. 2011). Because of identifiation diffiulties in the fild, the Tahiti Petrel had been previously identifid in Hawaiian waters with the Phoenix Petrel as part of a “species pair” (King 1970, AOU 1998, Pyle 2002).