No.457 Barn Swallow Hirundo rustica


Rank : 1
Summer Visitor

@One of our familiar birds in Japan, the species make nests colonially under eaves in early spring. They migrate from Southeast Asian countries to Asakawa River basin around March, and, after breeding, go back to the south from August to September. Our Kawasemi-Kai Society made surveys of the species'  nesting in 2001 and 2002 in the whole area of both Hachioji City and Hino City, when a total of 2,204 nests were confirmed in the area. The nests were made of kneaded mud and straws; roughly half of the nests were built in conventional homes. Immatures and their parent birds form large roosts among reeds in dry river beds at night. Our Society has been investigating on the roosting sites since mid-90s, and confirmed several sites in Tamagawa River basin. Some of the large roosting sites attract over 20,000 birds, and the scene of huge number of the species roosting in the evening is an impressive sight to see.

Photograph (click to enlarge)


Nest and Chicks

 Carrying mud for nest