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Barbary Shrike (Laniarius barbarus)101
| 제목: | Barbary Shrike (Laniarius barbarus)101
| | 올린이: | John White (john.white161@verizon.net)
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파일크기: 260773 Bytes
등록시간: 2007:03:04 17:40:31
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Yellow-crowned gonolek
Laniarius barbarus
SUBFAMILY
Malaconotinae
TAXONOMY
Lanius barbarus Linnaeus, 1766, Senegal. Two races; slight differences mainly affecting coloration of crown and nape.
OTHER COMMON NAMES
French: Gonolek de Barbarie; German: Goldscheitelw??rger; Spanish: Gonolek Com??n.
PHYSICAL CHARACTERISTICS
9.0???9.8 in (23???25 cm); on average 1.7 oz (49 g). A robust, relatively large, and brightly colored species. The similar sexes have black upperparts contrasting with a golden crown, brown
eyes, and vermilion red underparts. Juveniles are similar, but have duller upperparts and buffy underparts with heavy dark barring. Race helenae has a deeper reddish crown.
DISTRIBUTION
Western Africa from southern Mauritania to northern Cameroon. Helenae is confined to coastal areas in Cameroon.
HABITAT
Dense, woody undergrowth in savannas; the Sierra Leone race inhabits mangroves.
BEHAVIOR
Occurs singly or in pairs. Spends much time in low vegetation and on the ground, but may also look for prey on small branches up to about 16 ft (5 m). Its flight is short and appears heavy. More often heard than seen; produces remarkable duets that sound as if they were produced by a single bird. Sedentary as far as known.
FEEDING ECOLOGY AND DIET
Arthropods, mainly insects and particularly caterpillars and grasshoppers. Said to predate on birds' nests.
REPRODUCTIVE BIOLOGY
Monogamous and territorial. Few precise data available. The nest is hidden relatively low, between 4.9 and 14.8 ft (1.5???4.5m) in a dense bush or a small tree. It receives two, or more rarely three, eggs. Eggs may be laid at any time of the year.
CONSERVATION STATUS
Not threatened. The precise status of the Sierra Leone race might require further investigations.
SIGNIFICANCE TO HUMANS
None known.
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| Yellow-crowned Gonolek (Laniarius barbarus) aka common gonolek |
^o^
동물그림창고 똑똑전화 누리집
^o^
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