A female pigeon cannot lay an egg without seeing another pigeon around. (The exception to this is if the pigeon becomes bonded to its owner or an object around it.)
如果没有另一只鸽子在旁边，雌鸽不能产蛋（例外情况：如果它和他的主人呆在一起或者周围有一个物品）
When a vulture sees a threat, it pukes on its enemy.
秃鹫看到威胁，就扑向敌人。
A bluejay can imitate the sounds of a hawk.
蓝鸦（北美洲产的一种蓝色鸟）可以模仿鹰的叫声。
The hooded pitohui is a poisonous bird. Touching its skin or feathers causes numbness and tingling.
黑头林鵙鹟(jú wēng)是一种有毒的鸟。触摸它的皮肤或羽毛会导致麻木和刺痛。
The oldest parrot in the world is 104.
世界上最古老的鹦鹉活了104岁。
Green herons will sometimes drop an insect into the water and catch the fish that eats the bug.
绿鹭有时会把昆虫丢进水，以此来抓住吃虫子的鱼。
Turkeys can have heart attacks and die from them.
火鸡会死生心脏病发作。
Birds have feathers, wings, lay eggs and are warm blooded.
鸟有羽毛，翅膀，会下蛋，温血动物
There are around 10000 different species of birds worldwide.
世界上有约1万种鸟类
The Ostrich is the largest bird in the world. It also lays the largest eggs and has the fastest maximum running speed (97 kph).
世界上最大的是鸵鸟，它产的蛋也是所有鸟类中最大的，同是拥有最快的奔跑速度（约97公里每小时）
Scientists believe that birds evolved from theropod dinosaurs.
科学家认为鸟是从兽脚类恐龙进化而来的
Birds have hollow bones which help them fly.
鸟有一种特殊的空心骨能帮助他们飞
Some bird species are intelligent enough to create and use tools.
有些鸟非常聪明，能够制造和使用工具
The chicken is the most common species of bird found in the world.
鸡是世界上发现的最普通的鸟类
Kiwis are endangered, flightless birds that live in New Zealand. They lay the largest eggs relative to their body size of any bird in the world.
几维（一种新西兰产的无翼鸟）鸟是生活在新西兰的一种不会飞的鸟，它产的蛋相对他们的身体大小而说是这个世上最大的蛋了
Hummingbirds can fly backwards. A hummingbird is the only bird that can fly backwards and sideways.
蜂鸟可以向后飞，侧向飞行。
The Bee Hummingbird is the smallest living bird in the world, with a length of just 5 cm (2 in).
蜜蜂鸟是世上最小的鸟，只有5cm长
Around 20% of bird species migrate long distances every year.
将近20%的鸟类每年迁徙很长的距离
Homing pigeons are bred to find their way home from long distances away and have been used for thousands of years to carry messages.
家鸽可以从很远的地方找到回家的路，所以几千年来一直被用作传递信息。
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