Biology:Bahama yellowthroat
| Bahama yellowthroat | |
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Scientific classification 
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| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Aves |
| Order: | Passeriformes |
| Family: | Parulidae |
| Genus: | Geothlypis |
| Species: | G. rostrata
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| Binomial name | |
| Geothlypis rostrata Bryant, H, 1867
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The Bahama yellowthroat (Geothlypis rostrata) is a New World warbler. It is a resident breeder endemic to the Bahamas.[1]
Taxonomy
It is closely related to common yellowthroat, Altamira yellowthroat and Belding's yellowthroat, and is also considered conspecific with these taxa.[citation needed]
Subspecies
Four subspecies have been recognised:[2]
- H.Bryant, 1867 Ridgway, 1886
- Ridgway, 1886 Geothlypis rostrata subsp. exigua
- Geothlypis rostrata subsp. coryi Ridgway, 1902
- Geothlypis rostrata subsp. rostrata Geothlypis rostrata subsp. tanneri
Description
The Bahama yellowthroat is about 15 cm (5.9 in) long with a large bill. The adult male of the nominate race G. r. rostrata, found on Andros and New Providence islands has an olive-green back and mainly yellow underparts, slightly paler on the belly. It has a black facemask and grey forecrown. The female is similar, but lacks the black mask and has a grey crown; she may have a whiter belly.[3]: 73–74 [4]
The adult male of G. r. tanneri, found on Grand Bahama, Great Abaco and associated islands, has a yellow tinge to the forecrown band, and G. r. coryi of Eleuthera and Cat[5] islands has a mainly yellow forecrown.[4]
The Bahama yellowthroat can be distinguished from wintering common yellowthroats by its greater size,[3]: 74 heavier bill and slower, more deliberate movements. Males additionally have more extensively yellow underparts, a larger facemask extending onto the nape, and in the case of coryi the distinctive yellow forecrown. Females have a grey wash to the head not shown by common yellowthroat. The Bahama yellowthroat also inhabits higher vegetation than the common yellowthroat.[6]: 510–511
Ecology
The breeding habitat of the Bahama yellowthroat is dense dry or damp low scrub, usually drier than the areas used by wintering common yellowthroats. It builds a cup nest low in dense vegetation or a tree stump, and lays two eggs. Like other yellowthroats, it forages low in vegetation and feeds on insects and other small invertebrates.[1]
Conservation
This species is common,[1] but is outnumbered in winter by migrant common yellowthroats.
References
- ↑ 1.0 1.1 1.2 1.3 BirdLife International (2024). "Geothlypis rostrata". IUCN Red List of Threatened Species 2024. doi:10.2305/IUCN.UK.2024-2.RLTS.T22721845A263286333.en. https://www.iucnredlist.org/species/22721845/263286333.
- ↑ "Geothlypis rostrata H.Bryant, 1867". Species. GBIF. http://www.gbif.org/species/2489645.
- ↑ 3.0 3.1 Birds of the Bahama islands; containing many birds new to the islands, and a number of undescribed winter plumages of North American species. 1880. https://www.biodiversitylibrary.org/page/14472480. Retrieved 12 December 2025.
- ↑ 4.0 4.1 W. E. Clyde Todd (April 1911). "The Bahaman Species of Geothlypis". The Auk 28 (2): 237–253. doi:10.2307/4071440. https://www.biodiversitylibrary.org/part/87568.
- ↑ Buden, Donald (1987). "The Birds of Cat Island, Bahamas". Wilson Bulletin 99 (4): 594.
- ↑ "XLIII.—A List of Birds collected on the Island of New Providence, Bahamas". Ibis (Published for the British Ornithologists’ Union by Academic Press) 5 (4): 506–520. 1899. doi:10.1111/j.1474-919x.1899.tb05566.x. https://www.biodiversitylibrary.org/part/381748.
Further reading
- Curson, Jon; Beadle, David; Quinn, David (1994). New World Warblers. London: Christopher Helm. ISBN 0-7136-3932-6.
Wikidata ☰ Q259159 entry
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