The avifauna of Biak Island, Papua, Indonesia with comments on status, conservation, natural history and taxonomy Author Bishop, K. David text Bulletin of the British Ornithologists’ Club 2023 2023-03-06 143 1 3 62 journal article 298463 10.25226/bboc.v143i1.2023.a2 6028cf6b-e944-40d1-b774-7caa1c970409 2513-9894 11642130 805136AB-F3FE-4C77-85AC-E37423156B6D [PETREL Pseudobulweria sp. ] Ripley stated ‘In November, these birds were seen off Biak…’ ( Mayr & Meyer de Schauensee 1939 ), which he listed as Tahiti Petrel Pseudobulweria rostrata . On 5 July 2017 D. Lopez-Velasco ( in litt . 2021) photographed a Tahiti / Beck’s Petrel over deep water between Biak and Numfor ( Fig. 5 ). Unfortunately, the images are insufficient to determine whether they pertain to the relatively common Tahiti Petrel P. rostrata or the extremely little-known Beck’s Petrel P. becki ( Shirihai 2008 ) .