Bahama yellowthroat

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Bahama yellowthroat
File:Bahama Yellowthroat (Geothlypis rostrata) held in hand, side view.jpg
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Passeriformes
Family: Parulidae
Genus: Geothlypis
Species:
G. rostrata
Binomial name
Geothlypis rostrata
Bryant, H, 1867
File:Geothlypis rostrata map.svg

The Bahama yellowthroat (Geothlypis rostrata) is a New World warbler. It is a resident breeder endemic to the Bahamas.[1]

Taxonomy

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It is closely related to common yellowthroat, Altamira yellowthroat and Belding's yellowthroat, and is also considered conspecific with these taxa.[citation needed]

Subspecies

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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

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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 

The song of Bahama yellowthroat is a loud wichety wichety wichety wich, similar to that of common yellowthroat. The call is a softer jip than that of common yellowthroat.[citation needed]

Ecology

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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

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This species is common,[1] but is outnumbered in winter by migrant common yellowthroats.

References

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Further reading

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  • Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).

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