和名: ハヤブサ, English: Peregrine falcon, Binomial name: Falco peregrinus (Tunstall, 1771)
Wikipedia
ハヤブサ目 > ハヤブサ科 > ハヤブサ属 > ハヤブサ
Order: Falconiformes > Family: Falconidae > Genus: Falco > Species: F. peregrinus
動物界で最速記録保持者のハヤブサ, Peregrine falcon, the fastest member of the animal kingdom.
2020年1月6日、手賀川流域で上空高くハヤブサが飛んで行くのを見かけた。腹部に縦縞があるので幼鳥のようだ。 ハヤブサは鳥類のみならず、動物界で最速の記録保持者だ（389 km/h）。
On January 6, 2020, I saw a Peregrine falcon flying high above the Tega River basin. It looks like a young bird with vertical stripes on the belly.
Wikipedia: The Peregrine is renowned for its speed, reaching over 320 km/h (200 mph) during its characteristic hunting stoop (high-speed dive), making it the fastest bird in the world and the fastest member of the animal kingdom. The highest measured speed of a peregrine falcon is 389 km/h.
下から見上げた場合、ハヤブサとチョウゲンボウは似ているが、上面が見えれば羽衣の色で区別がつく。 この写真で背中の色が黒っぽく見えるのでハヤブサと分かる。
If we see from below, Peregrine falcon and Common kestrel are similar, but if we can see the back we can distinguish them by the color of the plumage. In this picture, the color of the back looks dark, so we can see it as the peregrine falcon.
(Tega River basin, Chiba, Japan, 13:58, Jan. 6, 2020)
ハヤブサは南極大陸を除く全世界で見られ、最も広い地域に分布する猛禽類である。
Wikipedia
The peregrine falcon can be found nearly everywhere on Earth, except extreme polar regions, which makes it the world’s most widespread raptor.