. Birds that make higher-pitched sounds are less attractive.D. The migratory fork-tailed flycatchers... might push the birds away from each other. B. The migratory fork-tailed flycatcher is actually ……

published an interesting discovery about a bird called the fork-tailed flycatcher (叉尾王霸鹟). The study....The study looked at two known kinds of fork-tailed flycatchers: a migratory (迁徙的) one and a non-migratory ……

birds. The study looked at two kinds of fork-tailed flycatchers: a migratory (候鸟类的) one...Different types of fork-tailed flycatcher use their own “accents” to communicate.   ……

) in other animal species, too. A study found that two subspecies (亚种) of the fork-tailed flycatcher... that two subspecies (亚种) of the fork-tailed flycatcher (叉尾王霸鹟) can make different 2. __________ (sound ……

1. Sounding by sound is a sound method (方法) of sounding sounds.1. Sounding by sound is a sound method (方法) of sounding sounds.2. It’s not the cough that carries you off. It&rsquo ……

秋天里的鸟儿Autumn is a season for many birds to travel1. They fly from the cold north to the warm south. So, kids in the north can’t see birds in autumn? No, some birds don’t travel. They stay. Let’s see ……

to make its lights weaker for birds.Last week, Chicago became the first city in the US to join the "Lights Out" programme. By turning off the lights in the city's tallest buildings, thousands of birds ……

The sight of a bird taking off into the air often fills our heart with envy (嫉妒). Some birds... to:The sight of a bird taking off into the air often fills our heart with envy (嫉妒). Some birds ……

in the city should turn down or turn off their lights at night.About 5 million birds pass through New... city buildings pull the birds off their migratory path and into the concrete forest, especially when ……

the birds are presented (面临) with a trade-off (选择) between being heard at all and having the females...HAVE you ever noticed that birds in cities sing louder? A study recently published has found ……

Should we kill birds?为防止禽流感扩散,一些国家在疫区捕杀所有的鸟类。动物保护主义者对此持有异议。你认为是否应如此控制疫情？本期版主：辽宁鞍山市鞍钢高中指导教师：纪 伟Tian Disi: It is unfair to kill so many innocent migrating birds as well as domesticfowls(家禽) just ……

infected millions of birds there.Reuters, Jan 30Reuters, Jan 30The dictionary defines cull..., agricultural-sounding word that avoids the less-tasteful emotional-sounding "kill" and "slaughter". For example ……

the clouds. Here are the heights that different birds can fly to:The sight of a bird taking off... birds湿地生态环境改善，迎来更多“贵客”光临 湿地生态环境改善，迎来更多“贵客”光临 Every winter, Siberian cranes (白鹤) migrate ……

大红当上联合国大使啦！Red is a main character (主角) in Angry Birds. It is a very interesting game. Many birds fight against (对付) green pigs to protect bird eggs. Red will also meet with us in The Angry Birds ……

词数 375 建议阅读时间 8分钟 教案和课件见网站 测试见7版为什么不是所有鸟都会飞？WHAT makes birds so special compared to other animals? No doubt it’s their ability to fly. But come to think of it, not all birds can fly – ostriches (鸵鸟 ……