<documentid="1FE5E16F18AEE116DDF092BF947D6C84"ID-CLB-Dataset="298463"ID-DOI="10.25226/bboc.v143i1.2023.a2"ID-GBIF-Dataset="6028cf6b-e944-40d1-b774-7caa1c970409"ID-ISSN="2513-9894"ID-Zenodo-Dep="11642130"ID-ZooBank="805136AB-F3FE-4C77-85AC-E37423156B6D"IM.bibliography_approvedBy="carolina"IM.illustrations_approvedBy="carolina"IM.materialsCitations_approvedBy="carolina"IM.metadata_approvedBy="carolina"IM.tables_approvedBy="carolina"IM.taxonomicNames_approvedBy="carolina"IM.treatments_approvedBy="carolina"checkinTime="1718072374117"checkinUser="felipe"docAuthor="Bishop, K. David"docDate="2023"docId="03AB878AFFF9E115A38FFBC1FE47FF79"docLanguage="en"docName="BullBritOrnitholClub.143.1.3-62.pdf"docOrigin="Bulletin of the British Ornithologists’ Club 143 (1)"docStyle="DocumentStyle:EFA7F293C51FD4806C5290561C16F223.1:BullBritOrnitholClub.2017-.journal_article"docStyleId="EFA7F293C51FD4806C5290561C16F223"docStyleName="BullBritOrnitholClub.2017-.journal_article"docStyleVersion="1"docTitle="Gerygone magnirostris Gould 1843"docType="treatment"docVersion="11"lastPageNumber="46"masterDocId="FF92FFF2FFD2E139A31FFFF7FFCAFF80"masterDocTitle="The avifauna of Biak Island, Papua, Indonesia with comments on status, conservation, natural history and taxonomy"masterLastPageNumber="62"masterPageNumber="3"pageNumber="45"updateTime="1718322499255"updateUser="ExternalLinkService"zenodo-license-document="CC-BY-NC-4.0">
<mods:titleid="AC38B179C856FD59A4EF34700530BF09">The avifauna of Biak Island, Papua, Indonesia with comments on status, conservation, natural history and taxonomy</mods:title>
<bibRefCitationid="EF934B6DFFF9E112A29EFB8CFDFCFB13"author="Salvadori"box="[385,566,1147,1171]"firstAuthor="Salvadori"pageId="43"pageNumber="45"pagination="317 - 347"refId="ref33716"refString="Salvadori, T. 1878. Descrizione di trentuna species nuove di uccelli della sottoregione papuana, e note intorno ad altre poco conosciute. Ann. Mus. Civ. Genova 12: 317 - 347."type="journal article"year="1878">Salvadori (1878)</bibRefCitation>
<bibRefCitationid="EF934B6DFFF9E112A2E7FB6BFC6DFB33"author="Mayr & Meyer de Schauensee"box="[504,935,1179,1204]"firstAuthor="Mayr"pageId="43"pageNumber="45"pagination="1 - 37"refId="ref32895"refString="Mayr, E. & Meyer de Schauensee, R. 1939. Zoological results of the Denison-Crockett Expedition to the South Pacific for the Academy of Natural Sciences of Philadelphia, 1937 - 1938. Part I. The birds of the island of Biak. Proc. Acad. Nat. Sci. Philadelphia 91: 1 - 37."type="journal article"year="1939">Mayr & Meyer de Schauensee (1939)</bibRefCitation>
<bibRefCitationid="EF934B6DFFF9E112A194FAECFC5CFAB3"author="Rand & Gilliard"box="[651,918,1307,1331]"firstAuthor="Rand"pageId="43"pageNumber="45"refId="ref33379"refString="Rand, A. L. & Gilliard, E. T. 1967. Handbook of New Guinea birds. Weidenfeld & Nicolson, London."type="book"year="1967">Rand & Gilliard (1967)</bibRefCitation>
and Beehler & Pratt (2016). The latter noted that SvB and KDB who are familiar with the species’ song had advocated treating
<bibRefCitationid="EF934B6DFFF9E112A042FAABFB9DFAF3"author="Hoyo & Collar"box="[861,1111,1371,1396]"firstAuthor="Hoyo"pageId="43"pageNumber="45"refId="ref32311"refString="del Hoyo, J. & Collar, N. J. 2016. HBW and BirdLife International illustrated checklist of the birds of the world, vol. 2. Lynx Edicions, Barcelona."type="journal volume"year="2016">Hoyo & Collar (2016)</bibRefCitation>
and
<bibRefCitationid="EF934B6DFFF9E112A38FFA8CFEF8FA13"author="Gregory"box="[144,306,1403,1427]"firstAuthor="Gregory"pageId="43"pageNumber="45"refId="ref31901"refString="Gregory, P. 2017. Birds of New Guinea including Bismarck archipelago and Bougainville. Lynx Edicions, Barcelona."type="book"year="2017">Gregory (2017</bibRefCitation>
,
<bibRefCitationid="EF934B6DFFF9E112A221FA8CFEB8FA13"author="Gregory"box="[318,370,1403,1427]"firstAuthor="Gregory"pageId="43"pageNumber="45"refId="ref31922"refString="Gregory, P. 2020. Biak Gerygone (Gerygone hypoxantha), version 1. 0. In del Hoyo, J., Elliott, A., Sargatal, J., Christie, D. A. & de Juana, E. (eds.) Birds of the world. Cornell Lab of Ornithology, Ithaca, NY. https: // doi. org / 10.2173 / bow. biager 1.01."type="book"year="2020">2020</bibRefCitation>
) treated this taxon as a full species but without a detailed assessment other than to note its taxonomy is unstable and that it has ‘clear yellow in plumage and is confined to a long-isolated island.’
<bibRefCitationid="EF934B6DFFF9E112A132FA09FD19F996"author="Salvadori"box="[557,723,1534,1558]"firstAuthor="Salvadori"pageId="43"pageNumber="45"pagination="317 - 347"refId="ref33716"refString="Salvadori, T. 1878. Descrizione di trentuna species nuove di uccelli della sottoregione papuana, e note intorno ad altre poco conosciute. Ann. Mus. Civ. Genova 12: 317 - 347."type="journal article"year="1878">Salvadori 1878</bibRefCitation>
<bibRefCitationid="EF934B6DFFF9E112A388F9E9FDD7F9B6"author="Mayr & Meyer de Schauensee"box="[151,541,1566,1590]"firstAuthor="Mayr"pageId="43"pageNumber="45"pagination="1 - 37"refId="ref32895"refString="Mayr, E. & Meyer de Schauensee, R. 1939. Zoological results of the Denison-Crockett Expedition to the South Pacific for the Academy of Natural Sciences of Philadelphia, 1937 - 1938. Part I. The birds of the island of Biak. Proc. Acad. Nat. Sci. Philadelphia 91: 1 - 37."type="journal article"year="1939">Mayr & Meyer de Schauensee 1939</bibRefCitation>
) collected two more, the only examples he encountered. Although infrequently observed by previous visitors, increasing familiarity with its vocalisations coupled with the possibility of it being an endemic species has resulted in numerous records since
The song of Biak birds fits well with the general description of the species’ geographically variable song: ‘a lilting, repetitive, musical, typical gerygone-sequence’ (
<bibRefCitationid="EF934B6DFFFEE115A388FF36FEB5FF59"author="Pratt & Beehler"box="[151,383,193,217]"firstAuthor="Pratt"pageId="44"pageNumber="46"refId="ref33292"refString="Pratt, T. K. & Beehler, B. M. 2015. Birds of New Guinea. Second edn. Princeton Univ. Press."type="book"year="2015">Pratt & Beehler 2015</bibRefCitation>
,
<bibRefCitationid="EF934B6DFFFEE115A295FF36FDEFFF59"author="Gregory"box="[394,549,193,217]"firstAuthor="Gregory"pageId="44"pageNumber="46"refId="ref31901"refString="Gregory, P. 2017. Birds of New Guinea including Bismarck archipelago and Bougainville. Lynx Edicions, Barcelona."type="book"year="2017">Gregory 2017</bibRefCitation>
), resembling closely that of Australian
<emphasisid="B976EA8EFFFEE115A0C5FF36FB46FF59"box="[986,1164,193,217]"italics="true"pageId="44"pageNumber="46">G. m. cairnsensis</emphasis>
