Koepcke's Screech-Owl
Megascops koepckeae
Small gray or brown owl with ear tufts. Found at high elevations in woodlots and forest edges, including in Polylepis forests. Found at higher elevations than the similar Peruvian Screech-Owl. Listen for its song, a staccato, crescendoing series of laughing “kak” notes.
识别特征
Koepcke's screech owl is about 24 cm (9.4 in) long. Six individuals of M. k. koepckeae weighed 112 to 127 g (4.0 to 4.5 oz) and three of M. k. hockingi 121 to 130 g (4.3 to 4.6 oz). The nominate subspecies has a whitish gray facial disc with darker speckles and a blackish rim. It has short whitish brows above yellow eyes. The crown is very dark brown with pale brown speckles. The upperparts are grayish brown to dark brown with blackish or dusky streaks and dark barring. The folded wing shows a line of whitish spots. The tail is dark brown with narrow ochre bars and small speckles. The underparts are grayish white and have wide dark brown streaks and irregular bars. The upper breast has a pale brownish ochre wash. M. k. hockingi is similar to the nominate but grayer, and the markings on its underparts are less apparent.
分类信息
Koepcke's screech owl was originally described as a subspecies of tropical screech owl (then Otus choliba, now Megascops choliba), and they are now considered sister species. It was named in honor of Maria Koepcke, a German ornithologist who worked extensively in Peru. It has two subspecies, the nominate M. k. koepckeae and M. k. hockingi.
- 学名
- Megascops koepckeae
- 命名信息
- (Hekstra, 1982)
- 目
- Strigiformes
- 科
- Strigidae
- 属
- Megascops
分布与栖息地
Koepcke's screech owl is found only in Peru. The nominate subspecies has a disjunct range including the northerly Departments of Lambayeque, Cajamarca,and La Libertad; the valley of the Utcubamba River; and small areas of the Departments of Ancash and Lima. M. k. hockingi is found further south, irregularly from southern Junín Department to the Departments of Huancavelica, Ayacucho, and Apurímac.<p>The two subspecies of Koepcke's screech owl inhabit different landscapes. The nominate uses evergreen forests between 1,840 and 4,500 m (6,040 and 14,760 ft) while M. k. hockingi inhabits dry forest and scrubby areas in intermontane valleys. In elevation it ranges between 1,400 and 3,400 m (4,600 and 11,200 ft) but is usually found below 2,000 m (6,600 ft).
- 迁徙
- Resident species
行为
Like most other screech owls, Koepcke's screech owl is nocturnal. Its diet has not been well studied but appears to be mostly insects and might include small vertebrates.<p>The breeding phenology of Koepcke's screech owl is also essentially undocumented. In south central Peru it breeds in February and March. It is assumed to usually nest in tree cavities like others of its genus but the only reported nest was in a cavity in an earthen bank.<p>The territorial song of Koepcke's screech owl has been described as "a loud, staccato series of notes with slowing pace and rising volume: ko-ko-ko-ko ka ka KA KAH!". M. k. hockingi's song is similar but is longer and higher pitched. An aggressive song is "a series of quieter short hoots rising and falling in pitch". Pairs sometimes sing in duet.
保护状况
- 种群趋势
- stable
照片
分布
鸟叫声
其他鸟类
Least Pauraque
Siphonorhis brewsteri
A nocturnal inhabitant of open arid woodlands and thornscrub. Perches on ground from which it makes floppy and erratic flight upon its long wings in pursuit of insects. During the day it nestles in shaded leaf litter, wherein its cryptic coloration hides it well. Both the Hispaniolan Nightjar and Chuck-wills-widow are considerably larger, darker, and lack the Least Pauraque’s white terminal tail band. Calls include a low scratchy “wuck-wuck-wuck-wuck,” a low-pitched rising and trilled “tooooooeeeeeee,” and a similarly low-pitched trilled “oo-weee-oo,” with emphasis on middle syllable. The calls of the Hispaniolan Nightjar is a lower pitched “toooooeeeeeo.”
Rufescent Screech-Owl
Megascops ingens
Large screech-owl of mid-elevation cloud forest. General coloration is either brown or rufous with a paler belly. Note dark eyes and rather plain facial pattern. Ear tufts are usually indistinct. Separated from other screech-owls in range by dark (not yellow) iris and voice. Typical song is a fairly rapid series of soft whistles. Also gives a series that starts slower and then speeds up suddenly.
Striated Bulbul
Alcurus striatus
A well-marked bulbul with a bushy crest. Olive-green above with a pale yellow throat and extensive white streaks on a dark breast and pale belly. A foothill and submontane specialist found in broadleaf forests, both evergreen and deciduous. Forages in the forest canopy, often in the company of other bulbuls. Somewhat similar to Mountain Bulbul, but has a bushier, more erect crest, darker upperparts, and obvious streaking on the underparts. Generally not very vocal; gives various chirps, warbles, and chips, often strung together into a loose “song” with short, distinct phrases.
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