He was one of the first people to use high speed flash in bird photography.
他是鸟类摄影中最先使用高速闪光灯的人之一。
Birding is a popular pastime that naturally leads to an interest in bird identification.
观鸟是一项很流行的休闲活动，自然而然地会使你对鸟类鉴别产生乐趣。
Physical characteristics that are important in bird identification include colors, markings, and bill or beak.
羽色、特殊标记以及鸟喙形状等特征在鸟类识别中有很大作用。
The researchers linked the rate of evolution in the parasites to the rate of evolution in bird hosts in the West Indies.
研究者将寄生虫的进化率和西印度群岛的禽类宿主的进化率联系起来。
The boy obviously needs a lesson in bird species, but his compassionate intention is a sign that he could grow up to be a genius.
很显然，小男孩需要上一堂关于鸟类的课，但他的慈悲意识，表明了他将来会是个天才。
Three of the cases they studied found that the rise of West Nile virus in the U.S. corresponded to decreases in bird population density.
他们在研究过的三个案例中发现西尼罗河热在美国的的流行与鸟类种群密度的下降相关。
The findings showed that over 20 years there was a 71 percent drop in native butterfly populations and a 54 percent drop in bird populations.
结果发现，20年来本地蝴蝶的数量下降了71%、鸟的数量下降了54%。
At one point a bird trilled in the conservatory.
在某一刻，一只鸟儿在温室里唧啾啼叫。
He held the bird gently in the palm of his hand.
他把小鸟轻轻地托在掌心。
This species of bird is decreasing in numbers every year.
这种鸟的数量在逐年减少。
The bird stopped and hovered in mid-air.
这只鸟儿停下来，在半空中盘旋。
The bird is too tame now to survive in the wild.
这只鸟养得太温驯了，现在很难在野生环境中生存。
You don't often see this bird in (the) daytime.
这种鸟白天不常见。
A bird had pecked a hole in the sack.
一只鸟把袋子啄了个洞。
In reality the bird was the willow-wren.
事实上，这只鸟就是只山雀。
I found a small coal black bird in the grass.
我在草丛中发现了一只黑色的小鸟。
The girl looked up and saw that the voice came from a bird hanging in a cage on the wall.
女孩抬头一看，声音是从挂在墙上笼子里的一只鸟发出来的。
"This is no bird," he said in a scared voice.
“这不是鸟，”他说，声音非常惊恐。
The bird spoke to him in French.
那只鸟用法语对他说话。
The bird told him a joke in Japanese.
那只鸟用日语给他讲了一个笑话。
A small, yellow bird in a cage sat on its perch outside the house.
屋外，一只小黄鸟站在鸟笼的栖木上。
The bird caught the insects in mid-air.
鸟在半空中捕捉了昆虫。
The bird is now a rare sight in this country.
如今在这个国家，这种鸟已罕见了。
She held the bird gently in cupped hands.
她双手轻轻地捧着那只小鸟。
The bird had become entangled in the wire netting.
那只小鸟被铁丝网缠住了。
The bird had become entangled in the wire netting.
那只小鸟被铁丝网缠住了。
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