The Bonin grosbeak or Bonin Islands grosbeak (Carpodacus ferreorostris) is an extinctfinch. It is one of the diverse bird taxa that are vernacularly called "grosbeaks", but it is not closely related to the grosbeakssensu stricto. Many authorities place the species in the genus Carpodacus, but some place it in its own genus, Chaunoproctus. A 2013 genetic analysis found it to be a relatively basal member of the group, more derived than the common rosefinch, but with no close relatives, with an estimated divergence time from other members of the group around 12.5 million years ago.[2]
It was a retiring although not shy bird, and was usually found singly or in pairs. It fed on fruits and buds which were primarily picked up from the ground or low shrubs; it rarely was observed to perch in trees, being apparently rather phlegmatic and somewhat reluctant to fly. Only one kind of vocalization has been described: a soft, pure and high note, sometimes short, sometimes drawn out; sometimes given singly, sometimes in a short series.
Habitat
It was found only on Chichi-jima in the Ogasawara Islands. While reports that it was also found on Haha-jima are almost certainly erroneous, it might have occurred on Anijima and Otōtojima. Chichi-jima is the only place, however, where the bird was observed. Several specimens were taken; some 10 remain at present. Contemporary illustrations show considerable differences, especially in males. Whether these are due to seasonal variation or whether several subspecies or even species existed could only be determined by a thorough review of the available material.
The Bonin grosbeak was discovered by the Beechey Pacific expedition, which collected two specimens on Chichi-jima in 1827. The following year, Kittlitz took several more specimens, but he only gave the locality "Boninsima" (="Bonin-shima": Ogasawara Islands). Following the report of two shipwrecked sailors, picked up by Beechey, that the island would make a good stopover station for whalers, settlement was begun in 1830. When the Rodgers-RinggoldNorth Pacific Exploring and Surveying Expedition called at Chichi-jima in 1854, naturalist William Stimpson could not find the birds. What he did find, however, were rats and feral goats, sheep, dogs and cats, in addition to the pigs that were already present in 1828 (and which might have been left there by Beechey to provision future castaways). Just like the Bonin thrush, the Bonin grosbeak probably succumbed soon after 1830 to habitat destruction and predation by the introduced mammals.
The collector A. P. Holst was told by settlers on Chichi-jima in 1889 that some birds had persisted on Haha-jima until the early 1880s. However, given that the species was not reported from there neither during the 1853 visit of the first Perry mission to Japan nor in 1854, this seems either erroneous or a misunderstanding for some other island in the Chichi-jima group. The sedentary habits of the Bonin grosbeak make it unlikely that it was present anywhere outside the Chichijima Rettō.
References
^BirdLife International (2017). "Carpodacus ferreorostris". IUCN Red List of Threatened Species. 2017: e.T22720622A111776645. doi:10.2305/IUCN.UK.2017-1.RLTS.T22720622A111776645.en. Retrieved 11 November 2021.
^Tietze, Dieter Thomas; Päckert, Martin; Martens, Jochen; Lehmann, Henriette; Sun, Yue-Hua (2013-08-29). "Complete phylogeny and historical biogeography of true rosefinches (Aves:Carpodacus)". Zoological Journal of the Linnean Society. 169 (1): 215–234. doi:10.1111/zoj.12057. ISSN 0024-4082.
Further reading
Wikimedia Commons has media related to Carpodacus ferreorostris.
Bonaparte, Charles Lucien Jules Laurent (1850): 1060. Chaunoproctus. In: Conspectus generum avium1: 526. PDF fulltext available at Gallica: search for "Bonaparte" and "Conspectus"
Vigors, Nicholas Aylward (1829): [Description of Chaunoproctus ferreorostris]. Zool. J.4: 354.
August 21, 2023
bonin, grosbeak, bonin, islands, grosbeak, carpodacus, ferreorostris, extinct, finch, diverse, bird, taxa, that, vernacularly, called, grosbeaks, closely, related, grosbeaks, sensu, stricto, many, authorities, place, species, genus, carpodacus, some, place, ge. The Bonin grosbeak or Bonin Islands grosbeak Carpodacus ferreorostris is an extinct finch It is one of the diverse bird taxa that are vernacularly called grosbeaks but it is not closely related to the grosbeaks sensu stricto Many authorities place the species in the genus Carpodacus but some place it in its own genus Chaunoproctus A 2013 genetic analysis found it to be a relatively basal member of the group more derived than the common rosefinch but with no close relatives with an estimated divergence time from other members of the group around 12 5 million years ago 2 Bonin grosbeakBonin grosbeaks by F H von Kittlitz 1828Conservation statusExtinct 1830s IUCN 3 1 1 Scientific classificationDomain EukaryotaKingdom AnimaliaPhylum ChordataClass AvesOrder PasseriformesFamily FringillidaeSubfamily CarduelinaeGenus CarpodacusSpecies C ferreorostrisBinomial name Carpodacus ferreorostris Vigors 1829 SynonymsCoccothraustes ferreorostris Vigors 1829Fringilla papa Kittlitz 1830Papa ferreirostris BonaparteMycerobas papa CabanisChaunoproctus papa Bonaparte 1850Chaunoproctus ferreirostris lapsus Contents 1 Behaviour 2 Habitat 3 Extinction 4 References 5 Further readingBehaviour Edit Restoration by KeulemansIt was a retiring although not shy bird and was usually found singly or in pairs It fed on fruits and buds which were primarily picked up from the ground or low shrubs it rarely was observed to perch in trees being apparently rather phlegmatic and somewhat reluctant to fly Only one kind of vocalization has been described a soft pure and high note sometimes short sometimes drawn out sometimes given singly sometimes in a short series Habitat EditIt was found only on Chichi jima in the Ogasawara Islands While reports that it was also found on Haha jima are almost certainly erroneous it might have occurred on Anijima and Otōtojima Chichi jima is the only place however where the bird was observed Several specimens were taken some 10 remain at present Contemporary illustrations show considerable differences especially in males Whether these are due to seasonal variation or whether several subspecies or even species existed could only be determined by a thorough review of the available material Extinction Edit source source source source source source source source source source source source Turnaround video of a male specimen Naturalis Biodiversity CenterThe Bonin grosbeak was discovered by the Beechey Pacific expedition which collected two specimens on Chichi jima in 1827 The following year Kittlitz took several more specimens but he only gave the locality Boninsima Bonin shima Ogasawara Islands Following the report of two shipwrecked sailors picked up by Beechey that the island would make a good stopover station for whalers settlement was begun in 1830 When the Rodgers Ringgold North Pacific Exploring and Surveying Expedition called at Chichi jima in 1854 naturalist William Stimpson could not find the birds What he did find however were rats and feral goats sheep dogs and cats in addition to the pigs that were already present in 1828 and which might have been left there by Beechey to provision future castaways Just like the Bonin thrush the Bonin grosbeak probably succumbed soon after 1830 to habitat destruction and predation by the introduced mammals The collector A P Holst was told by settlers on Chichi jima in 1889 that some birds had persisted on Haha jima until the early 1880s However given that the species was not reported from there neither during the 1853 visit of the first Perry mission to Japan nor in 1854 this seems either erroneous or a misunderstanding for some other island in the Chichi jima group The sedentary habits of the Bonin grosbeak make it unlikely that it was present anywhere outside the Chichijima Rettō References Edit BirdLife International 2017 Carpodacus ferreorostris IUCN Red List of Threatened Species 2017 e T22720622A111776645 doi 10 2305 IUCN UK 2017 1 RLTS T22720622A111776645 en Retrieved 11 November 2021 Tietze Dieter Thomas Packert Martin Martens Jochen Lehmann Henriette Sun Yue Hua 2013 08 29 Complete phylogeny and historical biogeography of true rosefinches Aves Carpodacus Zoological Journal of the Linnean Society 169 1 215 234 doi 10 1111 zoj 12057 ISSN 0024 4082 Further reading Edit Wikimedia Commons has media related to Carpodacus ferreorostris Bonaparte Charles Lucien Jules Laurent 1850 1060 Chaunoproctus In Conspectus generum avium 1 526 PDF fulltext available at Gallica search for Bonaparte and Conspectus Vigors Nicholas Aylward 1829 Description of Chaunoproctus ferreorostris Zool J 4 354 Retrieved from https en wikipedia org w index php title Bonin grosbeak amp oldid 1113548969, wikipedia, wiki, book, books, library,
