So if there are people or dogs on the beach, the eggs and fledglings in the nests are really vulnerable.
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。
Tending to several fledglings at once isn't easy.
趋向几个幼鸟一次是不容易的。
Among their prey are albatross fledglings, which weigh some 300 times as much as the mice.
这些老鼠的掠食对象当中还有信天翁的幼鸟，这种幼鸟的体重约是老鼠的300倍。
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。
So if there are people or dogs on the beach, the eggs and fledglings in the nest are really vulnerable.
所以如果有人或者狗在沙滩上，在巢中的蛋和幼鸟几乎是很脆弱，很容易受伤害的。
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."
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。
These brilliant big-brained birds make sophisticated insect-digging tools from palm leaves — and are fledglings for much longer than not-so-bright birds like chickens.
这种聪明的大脑袋飞禽能将棕榈叶啄成精致的用来挑虫子的工具，它们的幼雏期比智商不那么高的禽类，比如鸡的幼雏期要长得多。
In spring, caterpillars time their emergence to coincide with the bud burst of trees; birds start nesting when they can feed those newly emerged caterpillars to their fledglings.
春天，毛毛虫的出现时间和树木的萌芽一致；鸟儿开始筑巢的时间要跟毛虫出现的时间吻合，用来哺育幼鸟。
In spring, caterpillars time their emergence to coincide with the bud burst of trees; birds start nesting when they can feed those newly emerged caterpillars to their fledglings.
春天，毛毛虫的出现时间和树木的萌芽一致；鸟儿开始筑巢的时间要跟毛虫出现的时间吻合，用来哺育幼鸟。
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