Double-Crested Cormorant - Phalacrocorax auritus

观看次数1,246

人类判断

8.0

谢谢，您的投票已被记录，我们将会更新游戏评分。

是

否

已经添加到了您个人资料收藏中。

标签

教育

鸟类

视频说明

The double-crested cormorant (Phalacrocorax auritus) is a member of the cormorant family of seabirds. It occurs along inland waterways as well as in coastal areas, and is widely distributed across North America, from the Aleutian Islands in Alaska down to Florida and Mexico. Measuring 70–90 cm (28–35 in) in length, it is an all-black bird which gains a small double crest of black and white feathers in breeding season. It has a bare patch of orange-yellow facial skin. Five subspecies are recognized.

The double-crested cormorant is found near rivers and lakes and along the coastline. It mainly eats fish and hunts by swimming and diving. Its feathers, like those of all cormorants, are not waterproof and it must spend time drying them out after spending time in the water. Once threatened by the use of DDT, the numbers of this bird have increased markedly in recent years.
The double-crested cormorant was described by Rene Primevere Lesson in 1831. Its scientific name is derived from the Greek words :phalakros, "bald" and korax, "crow" or "raven", and the Latin auritus, "eared", referring to its nuptial crests. Its common name refers to the same nuptial crests.

分类：热门免费线上视频标签动物

插件 31 Jul 2017