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The striated swallow (''Cecropis striolata'') is a species of swallow found in open, often hilly areas, clearings and cultivation in South and Southeast Asia to northeastern India and Taiwan. The striated swallow was formerly sometimes considered to a subspecies of red-rumped swallow. ==Description== The striated swallow is 19 cm long with a deeply forked tail. It has blue upperparts other than a reddish collar (sometimes absent) and streaked chestnut rump. The face and underparts are white with heavy dark streaking. The wing are brown. The sexes are alike but juveniles are duller and browner, with a paler rump and shorter outer tail feathers. There are four races: *''C. s. striolata'' breeds in Taiwan, The Philippines and Indonesia. *''C. s. mayri'' breeds from northeastern India to northwestern Myanmar. It has broader streaks than nominate ''striolata''. *''C. s. stanfordi'' breeds from northeastern Myanmar to northern Thailand. It has broad streaks. *''C. s. vernayi'' breeds locally in western Thailand. It is more rufous below than the nominate race, and is only faintly streaked on the rump. The contact call is ''pin'', the alarm is ''chi-chi-chi'', and the song is a soft twittering. This species, particularly subspecies ''mayri'' is very similar to red-rumped swallow of the race ''japonicus'', but is larger, more heavily streaked, and has a less distinct neck collar. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Striated swallow」の詳細全文を読む スポンサード リンク
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