Hatchlings didn't leave the nest site immediately, but stayed in the area until they were at least double their hatching size.
幼仔不会立刻离开巢穴，而是一直在该区待到至少是孵化时两倍大小才离开。
Within a few days of hatching, cygnets venture from the nest to forage for aquatic plants and insects.
刚刚孵化几天的小天鹅冒险走出巢穴，寻找可吃的水草和昆虫。
The bird is monogamous, the female answers for nest building, hatching and brooding, the male answers for guarding home range and alerting.
该鸟为一夫一妻制，雌鸟担任筑巢、孵卵、育雏任务，雄鸟主要担任保卫领域及警戒任务。
On the snowfield of Beijing National Stadium (Bird's Nest), an egg yolk is lying there quietly, seeming to be waiting for hatching out a new life.
北京鸟巢前的雪地上，一个蛋黄静静地躺在那里，似乎等待着孵出新的生命。
Female sea turtles nest on beaches and their offspring instinctively head to the sea after hatching from their eggs.
雌海龟在沙滩上筑巢，然后他的后代们自己从蛋中孵出来。
Female sea turtles nest on beaches and their offspring instinctively head to the sea after hatching from their eggs.
雌海龟在沙滩上筑巢，然后他的后代们自己从蛋中孵出来。
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