Places and times seen in Munakata city

In Munakata, it is a summer bird, and it can be observed from April to October in the whole area of ​​the city (excluding marine areas). Some of them are overwintering.

Characteristic

The total length is 13 cm, which is smaller than the swallow. It is the same color in both sexes.
From the forehead, the top of the body is dark blue with shiny black, waist is white and wing axis is brown. The Aedo cylinder is shiny black color, the underside of the body is light color and slightly brownish. The nail is brown, the lower surface of the wing is grayish brown, the tail is short, and the concave tail is a little shallow. The tail tube is brown and its feather edge is light brown, but there are differences in shade depending on individuals.
Sounds rang such as "jiriririri".

Habit

It flew to the open area of ​​the subalpine belt from the flatland, always living in a flock and nesting in a close distance.
Make a narrow nest of entrances such as mud etc in the eaves of a house, under the eaves of a concrete building, under a bridge, rocky cliffs and so on.
It flies around flapping and running smoothly, and seldom stays in something outside the nest. Capture insects in the air and eat.

distribution

It is a summer bird in the north of Kyushu. Many are overwintering in the warmer areas. Munakata also has some overwintering.
They live in Primorsky, Yellow Sea, East China Sea, South China Sea Coast, Indochina Peninsula, Malaya Peninsula, Indonesia, Borneo, Celebes and the Philippines.

Other

Looking from the front, the upper half of the face is black, the lower half is white and has a charming face, it is cute.