Lilac-crowned Amazon
Amazona finschi
Relatively long-tailed, bright green parrot endemic to tropical lowlands and foothills in west Mexico. Uncommon. Found in forest, edge, and semiopen areas with forest patches. Most often seen flying overhead early and late in the day, often fairly high and usually in pairs or loose groups made up of pairs. Best field mark is the pale yellowish bill that contrasts with the dark red forehead (lilac crown is very hard to see). Like other parrots in the same genus, in flight shows a red patch on the flight feathers.
识别特征
The plumage of an adult lilac-crowned amazon is primarily green with yellowish underparts and black edging.The forehead is a maroon colour with a light blue-lilac neck, nape, and crown.The cheeks and ear coverts are a greenish yellow that lacks the edging that is present in most of the plumage.The primary feathers are dark blue with the secondary feathers being green while being tipped with the same dark blue colouring.Furthermore, the initial five secondary feathers have a bright red speculum on the edge of the feathers.The wing coverts, the underside of the flight feathers, and the tail are green while the tail is tipped with a yellowish colouring similar to that of the cheeks and ear coverts.Their beak, orbital rings, and legs are a pale brown-grey colouring.The irides of adult lilac-crowned parrots are amber-coloured.<p>Juvenile lilac-crowned amazons are visually similar to their adult forms except for minor differences. One difference is that the iris of juveniles is a dark brown as opposed to the amber colouring that is found in adults.The other major difference is that there less maroon coloured feathers on the forehead of juveniles. After about one-year juveniles begin to acquire these adult features.
分类信息
- 学名
- Amazona finschi
- 命名信息
- (Sclater, PL, 1864)
- 目
- Psittaciformes
- 科
- Psittacidae
- 属
- Amazona
分布与栖息地
The lilac-crowned amazon's endemic range spans along the pacific coast of Mexico, beginning in southeastern Sonora and southwestern Chihuahua down to southern Oaxaca. In Sinaloa and northern Nayarit the geographic range of the lilac-crowned parrot is above 375 meters of elevation; the range does not descend to sea level until southern Nayarit, where it remains so through Jalisco and Oaxaca.<p>The lilac-crowned amazon's natural habitat in Mexico is often threatened. The decline in population size has been recorded in almost all of its natural habitat locations. Based on a collection of data and resident accounts, Amazona finschi population range has decreased by 20% due to habitat loss.<p>An increasingly growing population of approximately 100 individuals is found in Southern California, especially in the San Gabriel Valley and Orange Country.This increase could also be attributed to a more reliable source of measurement of population than in past years. These populations often are found in residential areas and occasionally in nesting groups with red-crowned parrots in native conifer forests or non-native captive plants.
- 迁徙
- Nomadic movement
保护状况
- 种群趋势
- declining
照片
分布
鸟叫声
其他鸟类
Pearl-breasted Swallow
Hirundo dimidiata
A martin-like swallow with a bicolored plumage pattern of steel-blue upperparts and pale underparts. Pairs or small groups flit low over grassland, scrub, farmland, and open woodland, often near water. It is a migrant to the southern parts of South Africa, but it is resident elsewhere, with some poorly understood movements. The Pearl-breasted Swallow differs from House Martin and Gray-rumped Swallow by having a dark (not pale) rump and pale (not dark) underwings.
Pallid Dove
Leptotila pallida
A rather plain medium-sized dove, mostly restricted to western Ecuador but also occurs in western Colombia and extreme northwestern Peru. Within range, the main confusion species is White-tipped Dove. Pallid Dove has notably darker and warmer brown upperparts that contrast more with the whitish underparts. Like other members of the genus, Pallid is typically found on the ground (or flushing up into the understory). It is most often seen walking on roads or trails, or flying across quickly. There are a few places where it visits feeders. Within its limited range, it is fairly common, but be careful to separate from the equally (or more) common White-tipped Dove. Listen for its low-pitched, single “hoo” call.
Mottled Honeyeater
Meliphaga mimikae
A medium-sized honeyeater of foothill forest. Olive-colored with distinct mottling below, a large yellow ear spot and a thin eye ring. Does not visit flowering trees but forages singly for fruit and insects. Co-occurs with several similar species, but none have such strong marking on the underparts. Like most similar species, it gives a non diagnostic “chup” but also a mournful piping.
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