Places and times seen in Munakata city

It is a summer bird at Munakata and can be seen from paddy fields and islands departments from May to mid-October. Although the number is relatively small, I see flight mixed with swallow species. Because it is larger than other swallow species. Easy to see.

Characteristic

Total length 20 cm. It is the same color in both sexes. Adult birds are almost entirely blackish brown, from bamboo to light brown with whitish appearance, the underside is somewhat pale yellow with dark brown scaly plaque. The waist is white. The wings are elongated, sickle shaped when flying, and often looks like a thin crescent shape. The tail is long, looking sharp when closed, and swallow like a swallow when opened slightly, the outermost tail feels sharp.

Habit

They inhabit the cliffs of the subalpine belt from the coast. Always swarming and acting, packing floating grass etc in rock cracks, solidifying with saliva and nesting. Outside the nest, eating and mating are done in the air.

distribution

It flew north of Kyushu as a summer bird.
Breed breeding in southeastern part of Siberia, Manchuria, northern part of China, overwintering in the South China Sea coast, Indonesia, Philippines, Borneo etc.

Other

It is necessary to distinguish from a bullfrog and a halibutted bird.