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類似Rovio出品的游戲Angry Bird里的紅色憤怒鳥的雀鳥是真實存在的，牠的學名為北美紅雀(Cardinalis Cardinalis)。北美紅雀主要生活在加拿大南部、美國東部及墨西哥東部，最著名的特徵為頭上的羽冠；多數雄鳥呈現耀眼的紅色，而雌鳥則夾雜灰褐色羽毛。

Rovio和national geographic還合作出了一本書﹣National Geographic Angry Birds
http://press.nationalgeographic.com/201 ... gry-birds/


http://animals.nationalgeographic.com/a ... /cardinal/
The northern cardinal is so well loved that it has been named the official bird of no fewer than seven U.S. states. Bright red cardinals are easily identified by even casual bird watchers, and are often seen frequenting backyards and bird feeders. When foraging elsewhere the birds eat insects, seeds, grain, fruit, and sap.

Cardinals, also called "redbirds," do not migrate and have traditionally been more common in warmer climes such as the U.S. southeast. However, in recent decades they have expanded their common range north through the United States and even into Canada. This population growth may be due to an increase in winter birdfeeders and to the bird's ability to adapt to parks and suburban human habitats.

Only males sport the brilliant red plumage for which their species is known. The color is a key to mating success—the brighter the better. Females are an attractive tan/gray.

Cardinals are active songbirds and sing a variety of different melodies.

Males can be aggressive when defending their territory, and they frequently attack other males who intrude. This tendency sometimes leads cardinals to fly into glass windows, when they charge an "intruding bird" that is really their own reflection.

Cardinals are fairly social and join in flocks that may even include birds of other species. During mating season, however, groups dissolve into pairs. Male birds feed their monogamous partners as they incubate clutches of eggs—typically three per season.