Cranes are large birds with long legs and necks.
鹤是一种腿和颈都很长的大型鸟类。
Large birds of prey soar on drafts of warm air.
大型捕食鸟儿在暖气流上飞翔。
Cranes are large birds with long legs and necks.
鹤是一种有着长长的腿和脖子的鸟。
Lastly, I couldn't help seeing the actual shadows of large birds passing over our heads, swiftly skimming the surface of the sea.
我也见过那些在我们头上的巨大鸟类的阴影，它们从海面疾飞掠过。
At the hearings, one of the subjects discussed was the increase in populations of large birds in North America that could threaten other planes.
听证会上，讨论内容之一就是北美大型鸟类的数量增加，这可能会对其他飞机也构成威胁。
But another factor also comes into play when large birds fly, according to a new study. They take much longer to regrow their feathers than smaller birds do.
但是新的研究显示，限制鸟体积的因素还有另外一个，那就是体积大的鸟比体积小一些的鸟羽毛再生长时间更长。
Some large birds, like honking big geese and 30-pound swans, get around the problem by forgoing flight while they get all their molting over with in one fell swoop.
一些大型鸟类，像是大雁或是体重能够达到30磅的天鹅，是以放弃飞行能力来解决换羽的难题的。
1: Large Birds, Spiders and Mom: Alan and Charlie do their best to get Jake ready for his first day of junior high, but they end up doing more harm than good.
第1集：大型鸟类，蜘蛛和妈妈：艾伦和查利做他们最好的，让杰克准备他的第一天的初中，但他们最终做弊大于好。
The mud is a feeding ground for large numbers of birds.
泥地是大量鸟类找寻食物的地区。
Large carnivorous plants in some hot and wet areas have been known to capture rats, birds, and frogs.
在一些湿热地带，大型食肉植物能够捕捉老鼠、鸟类和青蛙。
The ivory-billed woodpecker is not large, as birds go. It is about the size of a crow, but flashier.
象牙喙啄木鸟不像鸟那样大。它的大小和乌鸦差不多，但更华丽。
Seasonal migration is another form of escape, especially for large mammals or birds.
季节性迁徙是另一种逃避方式，特别是对大型哺乳动物或鸟类来说尤为如此。
This large woodland is home to many birds and other wildlife.
这片大林地是许多鸟类和其他野生动物的家园。
This is one of the reasons why some males birds have exotic plumes, why elk carry hefty antlers , and why male fiddler crabs have such large claws.
这就是为什么一些雄鸟长着充满异国情调的羽毛，为什么麋鹿拥有巨大的鹿角，为什么雄性招潮蟹有这么大的爪子的原因之一。
If birds make their pupils large and small from time to time, this can be a sign that they are excited or scared or angry.
如果鸟类的瞳孔时不时地变大变小，这可能是它们兴奋、害怕或生气的迹象。
The Severn estuary is an important habitat for birds; large barrages would destroy or damage much of it, as well as interfere with fish stocks in the river.
塞文河口是鸟类的栖息地，而大型水坝会在很大程度上破坏或毁坏河口，这同样也会破坏河流中鱼群的生态环境。
For example, both have a large hole in front of the eye; this big hole is only seen in these species and is not present in any other birds.
举个例子，它们在眼睛前面都有一个大孔；这种孔只会在这类物种上看到，但不会出现在其他鸟类身上。
Golden orb weavers' large, strong webs have ensnared prey as large as birds.
金球织网蜘蛛大而坚固的网曾诱捕到大如鸟的猎物。
Those studying the disease needed to know where wild birds were migrating and whether they carried the virus from its incubation points in large duck and chicken farms.
要回答这些问题不仅需要弄清野生鸟类的迁徙途径，还需要弄清它们是否携带了潜伏在大型养殖场中的病毒。
The burial site shows ancient residents of Alaska foraged for fish, birds and small mammals - as well as large game, reported the journal Science.
科学杂志上的报道上称，埋葬地点显示阿拉斯加的古代居民除了觅食大型哺乳动物，也吃鸟类，鱼类和小型哺乳动物。
It's the second known large avian from the dinosaur era, adding to the list of birds that lived alongside dinosaurs.
这是第二种与恐龙同时期的已知大型鸟类，与恐龙同时期的鸟类的名单扩大了。
If you've ever seen the cockatoos at a pet store and thought about keeping these large and magnificent birds - don't.
如果你在宠物店里见过凤头鹦鹉，并且想把这种美丽的大型鸟类作为宠物，劝你不要。
Birds definitely win the versatility award for having the ability to range from cute to scary and from large to small.
鸟图案的演绎可谓精彩纷呈：或可爱，或可怕，既可大，又可小，如果有一个多才多艺的奖话，它一定当之无愧。
They may flower before the birds and insects that feed on them, or the mammals that carry their pollen, are at large.
它们可能在以花为食的鸟类和昆虫或者搬运花粉的捕乳动物还在四处游荡之前开花。
He wants to build a system that can follow birds of almost any size-and large insects, too.
他希望建立一套系统能够跟踪任何尺寸的鸟类，甚至大一点的昆虫。
The H5N1 virus is now considered to be endemic in birds in large parts of China.
据目前认为，H5N1病毒在中国很大一部分地区的禽鸟中流行。
Just like humans, birds have extremely large brains for their bodies and it seems as though this specific communication is another commonality.
鸟和人在生理结构上的共同点之一是大脑占身体的比重较大，现在看来这种特殊的交流也是另一大共性。
His hands, four times as large, reached out slowly and clasped them as though they were cradling two tiny exotic birds.
他的手有她四倍那么大，慢慢地伸出来握住这双小手，这双小手好像是躺在摇篮中两只奇异的小鸟。
As infected birds shed large quantities of the virus in their faeces, opportunities for exposure to infected droppings or to environments contaminated by the virus are abundant under such conditions.
由于受染鸟类在其粪便中排泄大量病毒，在这种情况下接触受染粪便或病毒所污染环境的机会很多。
As infected birds shed large quantities of the virus in their faeces, opportunities for exposure to infected droppings or to environments contaminated by the virus are abundant under such conditions.
由于受染鸟类在其粪便中排泄大量病毒，在这种情况下接触受染粪便或病毒所污染环境的机会很多。
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