The bird genus Hirundo is a group of passerines in the family Hirundinidae (swallows and martins). The genus name is Latin for a swallow.

1/ Barn swallow (Nhạn bụng trắng, Hirundo rustica)

2/ Wire-tailed swallow (Nhạn đầu hung, Hirundo smithii)

3/ Pacific swallow (Nhạn đuôi đen, Hirundo tahitica)