Antillean Nighthawk
Chordeiles gundlachii
Long-winged nightbird with intricate brown and gray patterning. Very similar to Common Nighthawk, best distinguished by voice. Gives a rapid series of hard, buzzy notes: "drik-rik-rik-rik." A Caribbean species; in the U.S., found only on the Florida Keys. Prefers open areas with mix of grass, bare ground, and shrubs. Nocturnal but can be seen hunting around dawn and dusk, searching for insects in flight.
识别特征
The adults are dark with brown, grey and white patterning on the upperparts and breast; the long wings are black and show a white bar in flight. The tail is dark with white barring; the underparts are white with black bars. The adult male has a white throat; the female has a light brown throat. The most distinguishing characteristic to determine its identity from its closest relative the common nighthawk are the contrasting pale tertials near the back of the wings of a sitting bird. There are two color morphs, a gray and a rufous type. Like other nighthawks, this bird will display by flying upward with a distinctive call note, then diving, pulling out of the dive only a few feet from the ground. This creates a rush of air and distinctive sound.
分类信息
- 学名
- Chordeiles gundlachii
- 命名信息
- Lawrence, 1857
- 目
- Caprimulgiformes
- 科
- Caprimulgidae
- 属
- Chordeiles
分布与栖息地
Their breeding habitat is open country of the Greater Antilles, the Lesser Antilles, the Bahamas, and the Florida Keys in the United States. They usually nest on bare ground, sometimes in raised locations including stumps or gravel roofs. They especially favor recently cleared areas in forests, airport fields, cane fields and pastures. Little is known about migration habits, although there is some evidence of migration routes to North and Central South America.
- 迁徙
- Complete migrants
保护状况
- 种群趋势
- stable
照片
分布
鸟叫声
其他鸟类
Tricolored Blackbird
Agelaius tricolor
Very similar to Red-winged Blackbird. Male entirely glossy black with red shoulder patch bordered by white, not yellow. Female dark brown and streaky, larger and darker than any sparrow. Lacks warm tones to plumage, unlike female Red-winged Blackbird. For both sexes, note relatively thin, sharp bill. Found in marshes and adjacent fields; breeds in colonies. Undergoing significant population decline due to habitat loss. Song is nasal and low-pitched, not as complex or as musical as Red-winged.
Bay-backed Shrike
Lanius vittatus
Brightly-colored small shrike, reminiscent of Long-tailed Shrike in overall coloration. Black mask, rufous flanks and back, clean white throat, and small size make it distinctive within its range. Prefers open areas, often in dry regions, with scattered vegetation. Often perches up on exposed snags, fenceposts, or telephone lines. Song is a messy jumble of musical warbles, harsh churrs, and sharp twanging notes. Calls include a harsh “jhiir.”
Sharp-shinned Hawk
Accipiter striatus
Small hawk with relatively short rounded wings. Adults are gray above with pale orange barring below; immatures are browner and streaky. Very similar to Cooper's Hawk, especially in plumage, but smaller overall with smaller head, more squared-off tail, and more petite feet. Also note quicker, snappier wingbeats. Breeds in extensive forests. Feeds mainly on birds captured in flight. Often stalks feeders in search of prey.
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