Bahama Yellowthroat
Geothlypis rostrata
A largish, slow-moving warbler that inhabits thick vegetation from marshes to pine woodlands with dense thatch-palm undergrowth. Rather similar to Common Yellowthroat, but larger and more robust with a proportionately heavier bill. Males are entirely yellow below unlike Common Yellowthroats of eastern North America. The black mask of the Bahama Yellowthroat does not narrow towards the bill as it typically does in the Common. On the Andros Islands and New Providence, the crown is gray, unlike Common. Similarly, female Bahama Yellowthroats are more extensive yellow below but often have some gray on the lower belly. Songs and calls resemble those of Common, but the “tchuck” note lacks vibrato.
识别特征
Bahama yellowthroat is 15 cm 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.<p>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 islands has a mainly yellow forecrown.<p>The Bahama yellowthroat can be distinguished from wintering common yellowthroats by its greater size, 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.<p>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.
分类信息
It is closely related to common yellowthroat, Altamira yellowthroat and Belding's yellowthroat, and is also considered conspecific with these taxa.<p>Three subspecies have been recognised:
- 学名
- Geothlypis rostrata
- 命名信息
- Bryant, H, 1867
- 目
- Passeriformes
- 科
- Parulidae
- 属
- Geothlypis
分布与栖息地
- 迁徙
- Resident species
行为
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.
保护状况
This species is common, but is outnumbered in winter by migrant common yellowthroats.
- 种群趋势
- declining
照片
分布
鸟叫声
其他鸟类
Equatorial Akalat
Sheppardia aequatorialis
Small, fairly plain, brown-and-orange robin-like bird. The tail is rufous-brown, and a good view will reveal gray markings on the face. Found in the understory and mid-story of montane forest. Shy and inconspicuous. The song is a soft, repeated “brrr” that is easily missed. Extremely similar to Lowland Akalat, but has orange rather than brown flanks, and found at higher elevations. Also similar to White-bellied Robin-Chat, but separated by uniform rather than black-and-orange tail.
Guaiabero
Bolbopsittacus lunulatus
A common, lovebird-sized parrot of wooded areas in the lowlands and foothills. Overall green in color with a darker back, darker wings with blue edges and black tips, and paler green underparts and rump. Male has a blue face and collar. Female has reduced blue on the face with a scaled collar and rump. Similar in length to Philippine Hanging-Parrot, but Guaiabero is shorter-tailed and stockier, with a black rather than red bill. Voice consists of high-pitched ringing notes, often given in pairs.
Black-headed Antthrush
Formicarius nigricapillus
Antthrushes are rotund creatures that walk along the forest floor with a bobbing gait. They have short tails that are usually cocked straight up. Black-headed is very dark overall, browner toward the rear with a blacker head. Also note the teardrop-shaped pale skin around the eye. Secretive and difficult to spot, although sometimes seen walking along forest trails. Far more often heard than seen. Listen for fast whistled song, a fairly long series of notes rising in pitch.
开始您的观鸟之旅
在户外识别鸟类，并在下一次观察时随手查阅鸟类图鉴。