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VOA标准英语2012--Plan Hatched to Lure Swallows Back to Capistrano

时间:2012-06-06 07:26来源:互联网 提供网友:nan   字体: [ ]
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Plan Hatched to Lure1 Swallows Back to Capistrano

The cliff swallows' long-time roost at Mission San Juan Capistrano is celebrated2 every March with a parade, and 70 years ago, was immortalized through a song, "When the Swallows Come Back to Capistrano," which made Billboard’s Top Ten list.

The only problem is the swallows are not returning to Capistrano and haven’t for more than a decade.

In the 1990s, a project to restore the stone ruins of the mission's 200-year-old church dislodged several hundred nests, removing the entire colony.

”It's sad but, you know we had to stabilize3 these ruins so they wouldn't fall over and kill man," says Mechelle Lawrence-Adams, the mission's executive director.

The little brown birds with the white triangle on their faces still fly back to the city of San Juan Capistrano every spring after wintering in southern Argentina. You can see them in the sky, flashing their white bellies4 as they dive-bomb for insects mid-air.

They just don’t go back to the mission, much to the chagrin5 of staff and volunteers, like Pat March, who's witnessed multiple attempts to lure the passing swallows.

"What they would do is they would put out ladybugs to attract the swallows," she says.

Because the birds build their gourd-shaped nests out of mud pellets, staffers would make mud puddles6 for them on the mission grounds.

"You just dig a little ditch and put water in it and it's supposed to be the 'swallows wallows,'" March says.

The mission even stuck fake ceramic7 nests beneath the eaves of buildings. But the pre-fab homes didn't work. In fact, none of the tactics did.

So it was time to hire a professional.

Charles Brown, an ornithologist8 from the University of Tulsa, immediately saw why the mission was having difficultly getting the swallows back. Forty years of urbanization he says, has led to a 50 percent reduction in the swallow population of Southern California

"That is the one part of North America where the numbers have been going down,” Brown says.

He decided9 the best way to attract swallows back to the mission was to play to their sociability10

"The social species - they often look to see if others have settled there and have others been successful there," Brown says. "So we have to fool them into thinking that birds have been there recently."

Brown made a recording11 of cliff swallows in Nebraska and now those Midwestern chirps12 fill the mission’s courtyard.

The sounds come from a speaker system hidden behind bushes. A lot of people are counting on this approach, not just the mission employees who get the complaints about the missing swallows, but nearby businesses, too.

”More swallows mean more customers,” says Dominic Mayo, who works at The Capistrano Trading Post, across the street from the mission, which is packed with swallow paraphernalia13. ”We have metal swallows hand-made in Haiti. We have little swallow silver charms, swallow wind chimes, swallow mugs. We have shot glasses that say ‘Just a Swallow.’”

But two months into the recording experiment, no swallows have come back to Capistrano.

Scientists have not given up; they plan to play the recording again next spring.

And Walter Piper of Chapman University - who’s serving as Charles Brown’s eyes and ears on the ground in California - made a promising14 discovery in early May. In a residential15 area a half kilometer from the mission, he spotted16 about 100 swallows nesting under the eaves of several houses and apartment buildings. 

”This is the first indication that cliff swallows were nesting nearby the mission,” Piper says. "Bit by bit, they build these huge nests. It’s cute to see them poke17 their heads out of there.”

According to Piper, these birds are all potential future tenants18 for the mission, perhaps even as soon as next year. 


点击收听单词发音收听单词发音  

1 lure l8Gz2     
n.吸引人的东西,诱惑物;vt.引诱,吸引
参考例句:
  • Life in big cities is a lure for many country boys.大城市的生活吸引着许多乡下小伙子。
  • He couldn't resist the lure of money.他不能抵制金钱的诱惑。
2 celebrated iwLzpz     
adj.有名的,声誉卓著的
参考例句:
  • He was soon one of the most celebrated young painters in England.不久他就成了英格兰最负盛名的年轻画家之一。
  • The celebrated violinist was mobbed by the audience.观众团团围住了这位著名的小提琴演奏家。
3 stabilize PvuwZ     
vt.(使)稳定,使稳固,使稳定平衡;vi.稳定
参考例句:
  • They are eager to stabilize currencies.他们急于稳定货币。
  • His blood pressure tended to stabilize.他的血压趋向稳定。
4 bellies 573b19215ed083b0e01ff1a54e4199b2     
n.肚子( belly的名词复数 );腹部;(物体的)圆形或凸起部份;腹部…形的
参考例句:
  • They crawled along on their bellies. 他们匍匐前进。
  • starving children with huge distended bellies 鼓着浮肿肚子的挨饿儿童
5 chagrin 1cyyX     
n.懊恼;气愤;委屈
参考例句:
  • His increasingly visible chagrin sets up a vicious circle.他的明显的不满引起了一种恶性循环。
  • Much to his chagrin,he did not win the race.使他大为懊恼的是他赛跑没获胜。
6 puddles 38bcfd2b26c90ae36551f1fa3e14c14c     
n.水坑, (尤指道路上的)雨水坑( puddle的名词复数 )
参考例句:
  • The puddles had coalesced into a small stream. 地面上水洼子里的水汇流成了一条小溪。
  • The road was filled with puddles from the rain. 雨后路面到处是一坑坑的积水。 来自《简明英汉词典》
7 ceramic lUsyc     
n.制陶业,陶器,陶瓷工艺
参考例句:
  • The order for ceramic tiles has been booked in.瓷砖的订单已登记下来了。
  • Some ceramic works of art are shown in this exhibition.这次展览会上展出了一些陶瓷艺术品。
8 ornithologist ornithologist     
n.鸟类学家
参考例句:
  • That area is an ornithologist's paradise.那个地区是鸟类学家的天堂。
  • Now I know how an ornithologist feels.现在我知道做为一个鸟类学家的感受了。
9 decided lvqzZd     
adj.决定了的,坚决的;明显的,明确的
参考例句:
  • This gave them a decided advantage over their opponents.这使他们比对手具有明显的优势。
  • There is a decided difference between British and Chinese way of greeting.英国人和中国人打招呼的方式有很明显的区别。
10 sociability 37b33c93dded45f594b3deffb0ae3e81     
n.好交际,社交性,善于交际
参考例句:
  • A fire of withered pine boughs added sociability to the gathering. 枯松枝生起的篝火给这次聚合增添了随和、友善的气氛。 来自辞典例句
  • A certain sociability degree is a specific character of most plants. 特定的群集度是多数植物特有的特征。 来自辞典例句
11 recording UktzJj     
n.录音,记录
参考例句:
  • How long will the recording of the song take?录下这首歌得花多少时间?
  • I want to play you a recording of the rehearsal.我想给你放一下彩排的录像。
12 chirps 6a10ab5f46899527c1988cd37ebb3054     
鸟叫,虫鸣( chirp的第三人称单数 ); 啾; 啾啾
参考例句:
  • The linnet chirps her vernal song. 红雀吱喳鸣叫着她春天的歌。
  • She heard nothing but the chirps and whirrs of insects. 除了虫的鸣叫声外,她什么也没听见。
13 paraphernalia AvqyU     
n.装备;随身用品
参考例句:
  • Can you move all your paraphernalia out of the way?你可以把所有的随身物品移开吗?
  • All my fishing paraphernalia is in the car.我的鱼具都在汽车里。
14 promising BkQzsk     
adj.有希望的,有前途的
参考例句:
  • The results of the experiments are very promising.实验的结果充满了希望。
  • We're trying to bring along one or two promising young swimmers.我们正设法培养出一两名有前途的年轻游泳选手。
15 residential kkrzY3     
adj.提供住宿的;居住的;住宅的
参考例句:
  • The mayor inspected the residential section of the city.市长视察了该市的住宅区。
  • The residential blocks were integrated with the rest of the college.住宿区与学院其他部分结合在了一起。
16 spotted 7FEyj     
adj.有斑点的,斑纹的,弄污了的
参考例句:
  • The milkman selected the spotted cows,from among a herd of two hundred.牛奶商从一群200头牛中选出有斑点的牛。
  • Sam's shop stocks short spotted socks.山姆的商店屯积了有斑点的短袜。
17 poke 5SFz9     
n.刺,戳,袋;vt.拨开,刺,戳;vi.戳,刺,捅,搜索,伸出,行动散慢
参考例句:
  • We never thought she would poke her nose into this.想不到她会插上一手。
  • Don't poke fun at me.别拿我凑趣儿。
18 tenants 05662236fc7e630999509804dd634b69     
n.房客( tenant的名词复数 );佃户;占用者;占有者
参考例句:
  • A number of tenants have been evicted for not paying the rent. 许多房客因不付房租被赶了出来。
  • Tenants are jointly and severally liable for payment of the rent. 租金由承租人共同且分别承担。
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TAG标签:   VOA标准英语  Plan  Back
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