They're pretty close to the ground, but these warblers also nest in forests that have low shrub density.
它们离地面很近，但是这些蓝莺也会在灌木密度低的森林里面筑巢。
The confirmation researchers had been seeking was finally achieved in studies involving two varieties of warblers.
在对两种莺的研究中，研究人员一直在寻找的证据最终得到了证实。
The young of ground-nesting warblers produce begging cheeps of higher frequencies than do their tree-nesting relatives.
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。
It is usually the younger warblers that nest in these areas because the preferred spots where there are a lot of shrubs are taken by the older, more dominant birds.
通常，年轻的蓝莺将会在这些地方筑巢，因为有浓密灌木的首选的筑巢点已经被更年长的、地位更高的蓝莺所占领了。
The evidence suggests that warblers use their extremely elaborate songs primarily to attract females, clearly confirming the effect of intersexual selection on the evolution of birdsong.
证据表明，莺主要用它们极其精致的歌声吸引雌性，这清楚地证实了雌雄间选择对鸟类鸣叫进化的影响。
David Haskell created artificial nests with clay eggs and placed them on the ground beside a tape recorder that played the begging calls of either tree-nesting or of ground-nesting warblers.
David Haskell 制作了一些盛有泥蛋的人造鸟巢并把它们放在地面上，旁边有一个录音机，播放着树莺或地面莺的的乞食叫声。
鹦鹉是鸣鸟吗？
East Asia's Locustella warblers are a bit of a nightmare.
东亚的蝗莺属有点像是鸟人的梦魇。
Ninety-seven percent of all birds killed are songbirds, especially warblers.
百分之九十七的遇害鸟类属于鸣禽，其中莺科鸟数量尤其多。
To investigate, scientists reared more than 100 nestling garden warblers and Sardinian warblers.
为了进行调查，科学家饲养了100多只园莺和撒丁岛莺的雏鸟。
As we climbed, local warblers began to trill through the quietness and dogs barked in the distance.
当我们攀爬时，鸟鸣和狗吠打破了当地的平静。
They have tested the idea that cuckoos mimic hawks—or, at least, that warblers think cuckoos look hawklike.
他们已测试了这种观点，杜鹃模仿老鹰---或者，至少鸣禽认为杜鹃看起来像老鹰。
So they're pretty close to the ground, but these warblers also nest in forests that have low shrub density.
所以，它们倾向于接近地面，但是这些蓝莺也会在有着稀疏灌木丛的森林里面筑巢。
A study has shown that reed warblers - a cuckoo host species - are less likely to attack more "hawk-like" cuckoos.
一项研究表明，苇莺攻击长得像鹰的杜鹃的几率比较少。
Sightings over the decades have shown that ever more of these warblers migrate to northerly grounds in the winter rather than heading south.
几十年的观察显示这些鸟在冬天更多地迁往北方而不是向南飞。
You havethese birds -- sparrows, thrushes, warblers and such -- that haveevolved very specialized beaks for eating insects suddenly switching tofruits.
像麻雀，画眉，莺等专门吃昆虫 的鸟类突然进化成吃水果。
Riparian corridors, thick forests and secluded canyons are perfect birding destinations that are cooler to enjoy but are still popular with warblers and many songbirds.
河岸走廊，茂密森林和僻静峡谷是完美的观鸟目的地，这是更凉爽去享受观鸟的地方，这里也同样受到莺科鸟和许多鸣禽的欢迎。
The Fall is noted for migrating hawks and raptors, songbirds and warblers and great numbers of waterfowl. Also to be noted are the migrating Monarch Butterflies and dragonflies.
秋天主要是鹰、猛禽、燕雀、莺和大量的水禽迁徙，同时也有君主蝴蝶和蜻蜓路过。
Volunteers from New York Audubon identified American Redstars, Yellow Warblers, Wood Thrushes, Bicknell’s Thrushes, Baltimore Orioles and various species of Tanager in the lights.
来自纽约奥杜邦的志愿者们在光线中发现很多种鸟类，如美国红星鸟，黄莺，画眉，比氏夜鸫，巴尔的摩金莺以及各种各样的唐纳鸟。
Volunteers from New York Audubon identified American Redstars, Yellow Warblers, Wood Thrushes, Bicknell's Thrushes, Baltimore Orioles and various species of Tanager in the lights.
来自纽约奥杜邦的志愿者们在光线中发现很多种鸟类，如美国红星鸟，黄莺，画眉，比氏夜鸫，巴尔的摩金莺以及各种各样的唐纳鸟。
Cuckoos would have good reason to do so, since the warblers and other small birds in whose nests they lay their eggs are understandably frightened of hawks, and give them a wide berth.
杜鹃有很好的理由去模仿鹰，由于莺和其它的小型鸟类在它们的巢中产卵，自然这些小型鸟类就很害怕鹰，并且对鹰敬而远之。
Staff at Attenborough Nature Reserve, near Nottingham, claimed there had been several cases of birds such as Cetti's warblers being disturbed by mobile phones during the breeding season.
一位在诺丁汉附近Attenborough自然保护区工作的员工声称，已经发生了几起鸟类事件，比如处在繁殖期的Cetti 's warblers被移动电话惊扰。
Volunteers from New York Audubon identified American Redstarts and Yellow Warblers. Wood Thrushes, Bicknell's Thrushes, Baltimore Orioles and various species of Tanager may also have been trapped.
奥特朋纽约分会的志愿者认为美国红尾鸟，黄莺，画眉鸟，比氏鸫鸟，巴尔的摩黄鹂和各类唐纳雀可能也受困于此。
Volunteers from New York Audubon identified American Redstarts and Yellow Warblers. Wood Thrushes, Bicknell's Thrushes, Baltimore Orioles and various species of Tanager may also have been trapped.
奥特朋纽约分会的志愿者认为美国红尾鸟，黄莺，画眉鸟，比氏鸫鸟，巴尔的摩黄鹂和各类唐纳雀可能也受困于此。
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