A Oriental cuckoo,Tsutsudori,ツツドリ

According to the Wikipedia,

It breeds in northern Eurasia, northern Kazakhstan, Mongolia, northern China, Korea and Japan.

There are the following three types of Cuculus (saturatus);

Himalayan cuckoo（ Cuculus (saturatus) saturatus）, Oriental cuckoo（Cuculus (saturatus) optatus） and Sunda cuckoo proper（Cuculus (saturatus) lepidus）, migrate in Spring to Japan is Oriental cuckoo.

The exact extent of its wintering range is uncertain due to its secretive habits and the difficulty of separating it from the Himalayan cuckoo and other similar species.

ウィキペデイアによれば北部ヨーラシア、北部カザフスタン、モンゴル、北中国、韓国、日本で繁殖。

ツツドリには次の3種類あり、Himalayan cuckoo, Oriental cuckoo and Sunda cuckoo春、日本に飛来するのは Oriental cuckoo です。

越冬の正確な範囲は、隠れて見つけにくい習慣とヒマラヤツツドリと他の類似の種と見分けることの困難さのためによくわからない。

Oriental Cuckoo,Tsutsudori,ツツドリ

  UCN Red List Category : Least Concern 

When this wild bird appears,"I whisper to myself "Oh autumn has come"

it is already autumn. This wild bird moves while eating the insect which is a lot parasitic on mostly cherry trees of the late summer.

              

 　　　　　　　　　　　　　　　Female