所以如果海滩上有人或狗，巢里的蛋和雏鸟就很容易受到伤害。
So if there are people or dogs on the beach, the eggs and fledglings in the nests are really vulnerable.
我对这只雏鸟进行了检查，它看起来身体健康。
可怜的小乌鸦躺在地上，拍着翅膀，叫道：“噢，我们是多么无助的小雏鸟啊！”
The poor young ravens lay upon the ground, flapping their wings, and crying: "Oh, what helpless chicks we are!"
相比在树上筑巢的同种类雏鸟，在地面筑巢的鸣禽雏鸟会发出频率更高的乞食叫声。
The young of ground-nesting warblers produce begging cheeps of higher frequencies than do their tree-nesting relatives.
一个典型的例子就是鸣禽的雏鸟在父母带着食物归巢时所表现出的吵闹的乞食行为。
A classic example is noisy begging by nestling songbirds when a parent returns to the nest with food.
因此，一只以其兄弟姐妹为代价来获取食物的乞食雏鸟实际上可能会比其它雏鸟留下更少的基因副本。
Therefore, a begging nestling that secures food at the expense of its siblings might actually leave behind fewer copies of its genes overall than it might otherwise.
既然捕食者可以让雏鸟为食物付出巨大代价，那么乞食的雏鸟们到底可以从这种交流方式中得到什么益处呢？
Given that predators can make it costly to beg for food, what benefit do begging nestlings derive from their communications?
如果雏鸟双亲是根据雏鸟乞食的叫声响亮程度来把食物分给叫声响亮的健康雏鸟的话，那么鸟类双亲就是根据雏鸟乞食声音来决定如何分配食物的。
If parent birds use begging intensity to direct food to healthy offspring capable of vigorous begging, then parents should make food delivery decisions on the basis of their offsprings' calls.
饮食分析表明，白鹭的雏鸟以鱼和虾为食。
The dietary analysis showed that the nestlings of Egretta garzetta fed on fish and shrimps.
风暴把巢中的两个雏鸟吹下来了。
乌鸦总以为自己的雏鸟最美。
这些雏鸟称起来只有几克重。
乌鸦总以为自己的雏鸟最美。
新生雏鸟已有一个月大并且身体十分健康。
大家看到的雏鸟在干别的，在爬这些斜坡。
But we do see it doing something else, which is climbing these inclines.
布谷鸟的雏鸟把其他鸟的雏鸟逐出巢外。
雏鸟拍打着它的翅膀。
角色转换之间。传说有的雏鸟长大后，会衔食喂养衰老的母鸟。
As Roles Change - "When fledglings grow up, they are said to feed their aging parents with food from their own mouths."
角色转换之间——传说有的雏鸟长大后，会衔食喂养衰老的母鸟。
As Roles Change - When fledglings grow up, they are said to feed their aging parents with food from their own mouths.
他轻轻地拿起雏鸟，一个接一个地放进她们温暖的小屋。
He put the birds softly, one by one, into their warm little home.
这两只秃鹫现在重新被放生于野外并产出了第四只雏鸟。
These two birds are now back in the wild and raising their fourth chick.
他从马上下来，非常慈爱地看着在他温暖的大手中的雏鸟。
He got down from his horse and very gently took the little ones up in his big warm hands.
利希曼：接下来你们必须要相信我，因为大家看不到雏鸟在飞。
LICHTMAN: You're going to have to take my word for it because we don't see it flying.
巢边的那只雏鸟正跃跃欲试地扑打着翅膀，准备飞向广阔的世界。
The young bird on the edge of the nest was trying his wings to fly into the world.
当雏鸟孵化时，有许多鸟在看着，并且它们很容易在家族圈子里发现。
As young birds hatch, there are more birds to observe and they can be easier to spot in family groupings.
雏鸟们呆在育儿袋里或是坐在父母们的脚上取暖，它们看起来太可爱了。
The chicks were being kept warm in the brood pouch and on top of the feet of the parent. They looked so cute.
人类的施虐这往往和孩子有亲缘关系，而鹈鹕攻击的则是没有关系的雏鸟。
In humans the abuser is most often related to the child. The boobies however are attacking unrelated chicks.
人类的施虐这往往和孩子有亲缘关系，而鹈鹕攻击的则是没有关系的雏鸟。
In humans the abuser is most often related to the child. The boobies however are attacking unrelated chicks.
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