Bonin grosbeak
Bonin grosbeak | |
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Bonin grosbeaks by F.H. von Kittlitz, 1828 | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Aves |
Order: | Passeriformes |
Family: | Fringillidae |
Subfamily: | Carduelinae |
Genus: | Carpodacus |
Species: | †C. ferreorostris
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Binomial name | |
†Carpodacus ferreorostris (Vigors, 1829)
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Synonyms | |
Coccothraustes ferreorostris Vigors, 1829 |
The Bonin grosbeak or Bonin Islands grosbeak (Carpodacus ferreorostris) is an
Behaviour
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 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
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
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
References
- . Retrieved 11 November 2021.
- ISSN 0024-4082.
Further reading
- 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.