林夜鹰 Savanna Nightjar
Caprimulgus afinis

小型夜鹰
体长 20~26 cm

虹膜 /iris

褐色 /dark brown

嘴 /bill

黑色 /blackish

脚 /legs and feet

褐色 /brown

目 │ 夜鹰目CAPRIMULGIFORMES 科 │ 夜鹰科Caprimulgidae

野外识别 │ 上体灰褐色，白色喉斑分成两块，具 4 道翅斑，外侧尾羽白色。鸣声是轻微的“ chweep ”声。

居留及分布 │ 冬候鸟。主要分布于亚洲东南部、亚洲南部、中国及澳大利亚。南岭地区有新记录，记录于秤架。

生境及习性 │ 夜行性鸟类，白天多栖息于森林中及城市地面上或树枝上。飞行时振翅缓慢，无声。主要以空中飞行的各种昆虫为食，捕食时直接张嘴吞食飞蛾等空中的飞虫。常为城市灯光所吸引。通常没有巢，直接将卵产于森林中裸露的地上。繁殖期 3—8 月。窝卵数 2 枚，卵红色或橙红色。

Field identification │ A pale buff-brown nightjar with broad blunt wings and a long square-ended tail. The plumage markings are complex, but males are easily identified in flight by a conspicuous white band across the blackish wing-tips and broad white edges to the tail. Females show a buffier band across the wing-tips and lack white edges to the tail. The territorial call is distinctive—a loud, piercing,frequently repeated chweep .

Distribution & status │ Widely distributed in S and SE Asia east through Myanmar to southeast China and south to Sumatra, Borneo, Java and the Philippines, and mainly resident. The subspecies amoyensis occurs in southeast China including Guangdong. In Nanling, it is uncommon, recorded at Chengjia.

Habitat & habits │ Savanna Nightjars occur singly or in pairs (sometimes in larger numbers outside the breeding season) over open habitats, including grasslands, farmland, lightly vegetated hillsides, fishponds, river banks and reclamation sites. They roost quietly on the ground by day and are active at night, foraging for flying insects, especially moths, mantids, beetles and ants. In the breeding season, their flight is slow and quite low and they nest on open ground (occasionally flat roof-tops) in April-May in the region.