Cuckoo (Cuckoo) has a light grayish brown forehead, dark silvery gray on the top of the head, pillow to the back of the neck, dark gray on the back, blue gray on the waist and tail, dark brown on the central tail feather, brown on the feather axis, and white fine spots on both sides of the feather axis, which are mostly distributed in pairs.

There is a white apex at the end, and the tail feathers on both sides are light black and brown. There are also white spots on both sides of the feather shaft, and the white spots are large. There are also a series of white spots and white end spots on the inner edge. The inner side of the wings is covered with dark gray, and the outer side is covered with dark brown feathers and flying feathers.

The young bird's head, neck, back and wings are dark brown, and each feather has a white end edge, forming a scaly spot, with the head, neck and upper back as fine, and the lower back and wings as wide.

Extended data:

life habit

Mainly summer migratory birds, some tourists. It moved in April-May in spring and moved in September 9- 10/October.

Sexual loneliness, often alone activities. Flying fast and powerful, often in a straight line. When flying, the wings vibrate greatly, but there is no sound. During breeding, I like to sing, and I often stand on the top branches of trees and sing endlessly.

Sometimes at night, they also sing or sing while flying, and the cry is piercing and loud. You can hear its rough and monotonous voice of "cuckoo-cuckoo" from a long distance, and it can be repeated 20 times per minute. The sound is loud, and the second sound is once, like "KUK-KU".

Mainly Dendrolimus punctatus and gypsy moth? , pine needle moth, and other lepidopteran larvae. They also eat locusts, walking beetles, kowtows, bees and other insects.

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