现在，电击训练和医疗服务正在拯救这些大型鸟类。
Now, electric shock training and medical treatment are helping to rescue these big birds.
其中的一些小型哺乳动物有助于维持金鹰等大型鸟类的生存。
Some of those small mammals help to sustain such big birds as golden eagles.
鹤是一种腿和颈都很长的大型鸟类。
鸸鹋是一种不能飞的大型鸟类。
这是一个大型鸟类公园在世界上。
信天翁是大型鸟类，他们的双翼展开有两米。
Albatrosses are big. Their wings are more than 2 metres wide.
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。
It's the second known large avian from the dinosaur era, adding to the list of birds that lived alongside dinosaurs.
8300万年前的恐龙时代生活着一种直立高度可能达到10英尺高的大型鸟类。
A large bird, which may have stood at 10 feet tall, lived during the dinosaur era 83 million years ago.
这个发现对《白垩纪时期同时存在着大型鸟类和非鸟类恐龙》进行了证实。
The discovery confirms "that big birds were living alongside Cretaceous non-avian dinosaurs," lead author Darren Naish said.
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。
If you've ever seen the cockatoos at a pet store and thought about keeping these large and magnificent birds - don't.
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。
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.
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。
At the hearings, one of the subjects discussed was the increase in populations of large birds in North America that could threaten other planes.
在这期间，一些哺乳动物与一些无飞行能力的大型鸟类对这个世界也有过当家作主的经历，之后它们就灭绝了。
During this time mammals, along with some large flightless birds, did take over. Then they became extinct.
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。
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.
所以，如果大型鸟类要以小型鸟类那样的方式换羽的话，它们就不得不花上整年的时间来做这件事，也就没有什么时间来觅食或繁殖了。
So if big birds tried to do like little birds, they'd spend the whole year molting-leaving little time for finding food or mates.
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。
Seasonal migration is another form of escape, especially for large mammals or birds.
在一些湿热地带，大型食肉植物能够捕捉老鼠、鸟类和青蛙。
Large carnivorous plants in some hot and wet areas have been known to capture rats, birds, and frogs.
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。
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.
滨鸟进化过程的唯一不同是，它们是被时间分隔的；而那些大型的、不会飞行的鸟类是被海洋所分离。
The only difference in the shorebird case is that they were separated by time, whereas the large flightless birds were separated by oceans.
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。
The burial site shows ancient residents of Alaska foraged for fish, birds and small mammals - as well as large game, reported the journal Science.
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。
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.
对于某些人来说，冰河世纪毛犀牛的拱鼻和角并不意味着这种大型陆地哺乳动物，却是巨型鸟类的喙和爪。
To some, the arched snout and horns of skeletal Ice Age woolly rhinoceroses suggested not a vast land mammal, but the beak and claws of a giant bird.
近年来，因为追踪器的设计较大或较重，无法附着在小型鸟类身上，只能对较大型的鸟类进行追踪
Until recently, only larger birds could be followed using tracking devices, because the gadgets were too big and heavy to attach to small birds.
推介：原始的礁湖和沙滩，丰富的海洋生物，奇异的地方植物及鸟类，没有大型掠食者。
Pros: Pristine sandy lagoons and beaches, abundant Marine life, exotic endemic plants and birds, no major predators.
该国大片的灌木丛和森林是数量惊人的丛林鸟类的家园，包括大型猛禽。
The country’s vast stretches of bushland and woodlands are home to an astonishing array2 of bush birds, including giant birds of prey.
研究人员报告说它们可以影响到鸟类的大型活动方式。
Researchers report in Current Biology that they can affect birds’ patterns of movement on large scales.
所有的大型野兽都聚集在这里，鸟类尤其丰富。
All the big game congregate here, and birdlife is particularly prolific.
有些热，将须在冬季的几个月里，使这些鸟类是最适合大型室内鸟。
Some heat will be required during winter months so these birds are best suited for large indoor aviaries .
鸦：任一种鸦属的大型的、亮黑色鸟类，能发出嘶哑的特有叫声，尤指生活于北美洲的短嘴鸦。
Any of several large, glossy, black birds of the genus Corvus, having a characteristic raucous call, especially C. brachyrhynchos of North America.
鸦：任一种鸦属的大型的、亮黑色鸟类，能发出嘶哑的特有叫声，尤指生活于北美洲的短嘴鸦。
Any of several large, glossy, black birds of the genus Corvus, having a characteristic raucous call, especially C. brachyrhynchos of North America.
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