I saw a larger-than-usual bird on the tree. I couldn't tell what it was from its back. When I walked to the other side, I recognized it was a male Cooper's hawk due to its smaller size. The Cooper's Hawk is a medium-sized hawk with a long, rounded and barred tail. It is known as a predator of birds.
我看到樹上有一隻比平常大的鳥，但是我無法從它的背面分辨出它是什麼鳥。當我走到另一邊時，我認出那是一隻公的庫柏鷹，因為它很小。庫柏鷹是一種中等體型的鷹，尾巴長而圓，有條紋。它被稱為鳥類的捕食者。
I still remember how excited I was when I saw Cooper's hawk near my house for the first time in July of 2019.
我還記得第一次在2019年7月在我家附近看到庫柏鷹時我是多麼興奮。
Most of the time I saw Cooper’s Hawks are on a tree but I saw this one near the water and I could barely recognize it as a Cooper's hawk.
大多數時候我看到的庫柏鷹都是在樹上，但我在水邊看到的這隻，幾乎認不出它是庫柏鷹。
Notes 筆記
- It was named in 1828 by Charles Lucien Bonaparte in honor of his friend and fellow ornithologist, William Cooper. Other common names include: big blue darter, chicken hawk, flying cross, hen hawk, quail hawk, striker, and swift hawk.
- The Cooper's Hawk is a medium-sized hawk. It is from 14 to 21 inches long, with a wingspan of from 27 to 36 inches. The tail is long, rounded, and barred.
- It is native to the North American continent and found from southern Canada to Mexico.
- The Cooper's Hawk is a member of the genus Accipiter, sometimes referred to as true hawks, which are famously agile, relatively small hawks common to wooded habitats around the world and also the most diverse of all diurnal raptor genera.
- Known as a predator of birds, the Cooper’s hawk also feeds on mammals, particularly squirrels and chipmunks. Once known as a regular denizen of poultry yards, it is one of many “chicken hawks.” which refers to the Cooper's Hawk, the Sharp-shinned Hawk or the Red-tailed Hawk. The term Chicken Hawk, however, is misleading, as chickens do not make a up a significant part of their diet.
- Cooper's hawks prefer to nest in tall trees and can commonly produce up to two to four fledglings.
- Cooper’s Hawks are now fairly common urban and suburban birds. Some studies show their numbers are actually higher in towns than in their natural habitat, forests.
- As in most hawks, males are significantly smaller than their mates. Females are up to one third larger than males.
- 1828 年被命名為庫柏鷹來紀念一位鳥類學家威廉·庫柏。常見的名稱有：庫氏鷹、大藍鏢鷹、墨西哥鷹、鵪鶉鷹、前鋒鷹及迅鷹等。
- 庫柏鷹是中等大小的鷹，長14到21英寸，翼展27到36英寸。 尾巴長而圓且有條紋。
- 它原產於北美大陸，分佈於加拿大南部至墨西哥。
- 庫柏鷹是鷹屬的成員，有時被稱為真鷹，它們以敏捷著稱，在世界各地樹木繁茂的棲息地常見的相對較小的鷹，也是所有晝行性猛禽屬中最多樣化的。
- 庫柏鷹被稱為鳥類的捕食者，它也吃哺乳動物像松鼠和花栗鼠。也常徘徊家禽場附近，它是許多吃雞的“雞鷹”之一，雞鷹包括了庫柏鷹、紋腹鷹與紅尾鷹。但是，“雞鷹”一詞具有誤導性，因為雞在它們的飲食中所佔的比例並不大。
- 庫柏鷹喜歡在高大的樹上築巢。它們通常最多可以繁殖兩到四個雛鳥。
- 現在在城市和郊區會常看到庫柏鷹。 一些研究顯示，在城鎮中它們的數量會比自然棲息的森林要高。
- 和大多數鷹一樣，雄鷹比䧳鷹要小得多。䧳鷹可比雄鷹大1/3.
References 參考資料
- Wikipedia: Cooper's hawk
- 百度百科: 雞鷹
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