Slaty-tailed Trogon
Trogon massena
Large, red-bellied trogon of humid tropical lowlands. Favors rainforest interior, but also found at edges and around clearings, mainly perched quietly and in an upright position at middle to upper levels in larger trees. Lack of white band above the red belly and entirely dark gray undertail (or with a few fine white bars at the sides on immatures) separate Slaty-tailed from other red-bellied trogons. On males also note the stout orange bill and orange eyering. Digs its nest in arboreal termite nests.
识别特征
Trogons have distinctive male and female plumages, with soft, often colorful, feathers. The slaty-tailed trogon is 30 to 35.5 cm (12 to 14 in) long and weighs about 140 to 155 g (4.9 to 5.5 oz). The nominate male has an orange-red bill and a dull black face, chin, and upper throat with a red to orange ring around the eye. The upperparts are metallic green that tends to golden green on the back and bluish green on the crown and rump. The breast is metallic green and the belly and vent deep red. The folded wing has fine black and white vermiculation that looks gray at a distance. The upperside of the four central tail feathers are metallic green to bronzy green with black tips, the next pair mostly black, and the outermost pair entirely black. The undersides of the tail feathers are slate gray with black tips. The female replaces most of the male's green with gray that is paler on the upper breast than on the upperparts. The upperside of the tail is black. The female's maxilla is dusky gray.<p>The male T. m. hoffmanni's plumage is essentially the same as the nominate's but the upperside of the tail is more golden. T. m. australis is smaller than the nominate. Compared to the nominate, the male's uppertail is bluish green and the female's darker gray. The male's undertail is browner than the nominate's and there is more metallic green on the face and throat.
分类信息
Three subspecies of slaty-tailed trogon are recognized as of 2021: the nominate T. m. massena, T. m. hoffmanni, and T. m. australis. The last has sometimes been treated as a subspecies of black-tailed trogon (T. melanurus) or as a separate species.
- 学名
- Trogon massena
- 命名信息
- Gould, 1838
- 目
- Trogoniformes
- 科
- Trogonidae
- 属
- Trogon
分布与栖息地
The nominate subspecies of slaty-tailed trogon is found on the Caribbean slope from southern Mexico through Belize, Honduras, and Guatemala into Nicaragua. T. m. hoffmanni is found on the Caribbean and Pacific slopes of Costa Rica and Panama, and also in extreme northwestern Colombia. T. m. australis is found in western Colombia and far northwestern Ecuador. The species primarily inhabits the midstory to the canopy of tropical evergreen forest and mature secondary forest, and can also be found in gallery forest, coffee plantations, and mangroves. It is a bird of the lowlands, reaching only 600 m (2,000 ft) in Mexico and northern Central America. It is found locally as high as 1,200 m (3,900 ft) in Costa Rica, 1,400 m (4,600 ft) in Panama, and 1,100 m (3,600 ft) in Colombia.
- 迁徙
- Resident species
行为
The slaty-tailed trogon forages for fruits and insects by sallying or hover gleaning from a perch. It often follows white-faced capuchin monkeys (Cebus capucinus and C. imitator) to catch insects displaced by them.<p>The slaty-tailed trogon's breeding season varies geographically, but appears to span from February to July overall. Males and females display to each other by raising the tail and fluffing the uppertail covert feathers. It nests as high as 15 m (49 ft) in a cavity excavated in an occupied termite nest or decaying tree trunk. Both sexes excavate the nesting chamber. The typical clutch is two or three white or bluish-white eggs, and both sexes incubate them.<p>The slaty-tailed trogon's song is "a steady deliberate series of cow or cue notes"; another description is "a deep full-throated wuk, wuk, wuk …." Its calls include "a quiet clucking huh-huh-huh-huh" and a "chuckling chatter".
保护状况
- 种群趋势
- declining
照片
分布
鸟叫声
其他鸟类
Ground Parrot
Pezoporus wallicus
Shy, predominantly ground-dwelling, long-tailed parrot of dense coastal heath. Primarily green, with yellow-green underparts and extensive black barring throughout. Extremely shy; usually only seen flying away when disturbed. Adult has tiny red band above bill and pale eye. Call is the most reliable way to locate this species, which tends to call mostly at dawn and dusk: a high whistle that ascends in pitch.
Dwarf Cassowary
Casuarius bennetti
A huge flightless bird of hill and montane forest; occasionally in lowland rainforest, especially where other cassowary species are absent. The smallest member of the family. Plumage loose and black in adults, brown in juveniles. Adults have a bright blue neck with a red patch on the lower nape. Also note the low, rounded casque. Very secretive and seldom seen. Forages for fallen fruit on the forest floor. Similar to other cassowary species but smaller in size, with lower casque, lacking wattles and does not normally co-occur.
Black-capped Lory
Lorius lory
A red parrot with a black cap, moss-green wings, and a short dark tail. Note the red bill with a dark nostril area. In flight, shows red, yellow, and black stripes on underwings. Juveniles have brown bills and blue underwings. Groups inhabit forest, edges, and savanna in lowlands and foothills. Most Black-capped Lories have a dark collar, and some also show extensive blackish-blue markings on the underparts, unlike Purple-bellied Lory. The form of Black-capped Lory in the hills of south-central New Guinea lacks the collar and underside markings, so differs from Purple-bellied Lory by dark nostril area and call. Gives a shrill, two- to three-note shriek: “weeee-wooooo.”
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