評(píng)論
打印
Now it's her partner's turn.
現(xiàn)在輪到它的伴侶出去覓食
A chick's demands are endless.
雛鳥是需索無(wú)度的
Sometimes they can push parents to desperate lengths.
有時(shí)可能逼得父母鋌而走險(xiǎn)
But birds are masters of improvisation.
但鳥類是隨機(jī)應(yīng)變的大師
Dassen Island, off the coast of South Africa,
南非外海的達(dá)森島
is home to a nesting colony of great white pelicans.
白鵜鶘集體在這兒筑巢
There are chicks of all ages all with a hefty appetite.
這里的雛鳥年紀(jì)雖然不一樣 但全都食欲旺盛
The parents have a formidable task.
父母肩負(fù)一項(xiàng)艱巨任務(wù)
These pelicans are among the heaviest flying birds in the world,
這些鵜鶘是世上最笨重的飛鳥
weighing up to 10 kilos.
最多重達(dá)十公斤
A V-formation is the most energy efficient means of flying.
V字隊(duì)形是最省力的飛行方式
It significantly reduces drag for the bird behind.
為后面的鳥兒大幅降低阻力
Pelicans normally fish along the coast,
鵜鶘通常在岸邊捕魚
but a shortage of food supplies has forced them to look elsewhere.
但食物供應(yīng)短缺 它們只得到別處覓食
