Xantus's Hummingbird
Basilinna xantusii
Stocky, medium-sized hummingbird of the southern half of Baja California peninsula. No similar species in its limited range; endemic. Favors scrubby woodland, pine-oak woods in mountains, desert scrub, gardens; comes to feeders. Both sexes have a black mask, bold and thick white ear-stripe, red base to the bill, and bright rusty tail. Male head and throat often appear black, but in the right light throat flashes brilliant green. Female has pale cinnamon underparts.
识别特征
Xantus's hummingbird is 8.5 to 9.5 cm (3.3 to 3.7 in) long. Males weigh an average of 3.5 g (0.12 oz) and females 3.4 g (0.12 oz). Their bills are straight and about 1.7 cm (0.67 in) long; males' are red with a black tip. Females' maxilla is black with a pinkish base and their mandible pinkish red with a black tip. Males have a golden green to emerald green crown, nape, and upperparts with rufous edging on the uppertail coverts. Their forehead and chin are black, their face mostly black with a wide white stripe behind the eye, and their throat iridescent emerald green. Their underparts are cinnamon with some green mottling on the flanks and pale cinnamon undertail coverts. Their tail is rufous chestnut; the innermost pair of feathers have wide iridescent green edges and the other four pairs thin green edges. The females' face is blackish brown with a pale buffy stripe behind the eye. Their forehead is dull brownish and their upperparts iridescent golden green with some rufous edging on the uppertail coverts. The underparts including the throat and undertail coverts are pale to medium cinnamon. Their tail's central pair of feathers are golden green with a rufous shaft and the other four pairs dark rufous that pales towards the end, a black and bronzy green band near the end, and thin white tips.
分类信息
Xantus's hummingbird was early placed in genus Basilinna, which predated its discovery, then moved to genus Hylocharis, and then in the early 2000s moved back to Basilinna. It shares that genus only with the white-eared hummingbird (B. leucotis). It is monotypic.<p>It is named for John Xantus de Vesey (Xántus János), a Hungarian zoologist who collected the first specimen.
- 学名
- Basilinna xantusii
- 命名信息
- (Lawrence, 1860)
- 目
- Apodiformes
- 科
- Trochilidae
- 属
- Basilinna
分布与栖息地
Xantus's hummingbird is found from central Baja California south to the peninsula's tip. It has also been recorded as a vagrant twice in California and once in British Columbia. The species inhabits arid woodlands of scrub, oak, and pine-oak at elevations between 150 and 1,500 m (490 and 4,900 ft) and also visits coastal desert, gardens, and feeders.
- 迁徙
- Resident species
行为
Migration pattern: Resident species.
保护状况
Population trend: stable.
- 种群趋势
- stable
照片
分布
鸟叫声
其他鸟类
Imperial Amazon
Amazona imperialis
A rather large, dark, and stout resident of wet upland forest. Note iridescent purple underparts, vivid green upperparts, and hefty black bill. The Red-necked Parrot, the only other native species within its range, can be readily separated from the Imperial Parrot by its largely green plumage and the red (not purple) patch on its throat. Most common call is a yelping "weep", also gives a loud, scratchy “eee-er.”
Pale-footed Swallow
Orochelidon flavipes
Uncommon swallow in montane forest in the Andes from Venezuela to Bolivia. Similar to the more common Blue-and-white Swallow, but look for the buffy throat and browner flanks on Pale-footed Swallow. Found in flocks, usually not far from forest. Not frequently found around human settlements unlike Blue-and-white Swallow. Occurs from around 2,400–3,200 m.
Brown-backed Flowerpecker
Pachyglossa everetti
Generally uncommon, dull flowerpecker. Drab brown overall with paler underparts, olive-tinged wings, and pale eyes. Found in lowland and foothill forests; favors wetter habitats. Forages actively. Gives hard metallic “tchip” calls.
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