有趣的小小鸟

666

刚才回家的路上听了有关Northern Wheatear 的报道，觉得挺有意思的，上网找到了转过来。

666

The Epic Migration of a Songbird （PRI's The World http://www.theworld.org/2012/02/wheatear-migration/)



For the Geo Quiz, we’re tracking a bird called the Northern Wheatear.

This little bird has one of the largest ranges of any songbird in the world.

Its breeding grounds stretch from Siberia, across the Canadian Arctic and Greenland. During winter migration, they fly all the way to the Sub-Saharan Africa.

Scientists have figured that out by attaching tiny geo-locators to the birds, then mapping out their long flights. Researchers have shown that the Alaskan colony of Wheatears travels over 9000 miles one way to reach West Africa. Another colony in eastern Canada flies across the Atlantic Ocean, then over the Mediterranean and the Sahara Desert to reach its winter grounds.



The devices are fitted on the birds in one of their breeding grounds.

That is on the largest island in Canada, which is what we want you to name.

Final hint: The island is part of the territory of Nunavut.

Baffin Island is the answer to the Geo Quiz.



The migration routes of the Northern Wheatear songbird. Click to enlarge. (Map: Ryan Norris)
It is where bird researchers study the migratory flights of a songbird called the Northern Wheatear.

Anchor Marco Werman speaks with ecologist Ryan Norris from the University of Guelph, Ontario, about how scientists track the Wheatear’s flight from Arctic Canada to Sub-Saharan Africa, the longest migration of any songbird.

fanghua

song bird ， 多好听的名字！
我们这里就缺唱歌好听的鸟

666

原节目的录音

星光

我们学校有个教授就是研究控制Songbird 的唱歌基因的，所以她养了很多这样的Songbird，发现那些控制的genes, turn it on or off, 然后把Songbird 唱得歌录制下来，进行比较研究。

二平

查了中文，翻译为穗鵖。
这小鸟能飞大西洋，还真厉害。

also from wiki:

The Northern Wheatear makes one of the longest journeys of any small bird, crossing ocean, ice, and desert.[5] It migrates from Sub-Saharan Africa in Spring over a vast area of the northern hemisphere that includes northern and central Asia, Europe, Greenland, Alaska, and parts of Canada.[5] In Autumn all return to Africa, where their ancestors had wintered.[5] Arguably, some of the birds that breed in north Asia could take a shorter route and winter in south Asia; however, their inherited inclination to migrate takes them back to Africa.[5]

Birds of the large, bright Greenland race, leucorhoa, makes one of the longest transoceanic crossings of any passerine. In spring most migrate along a route (commonly used by waders and waterfowl) from Africa via continental Europe, the British Isles, and Iceland to Greenland. However, autumn sightings from ships suggest that some birds cross the North Atlantic directly from Canada and Greenland to southwest Europe (a distance of up to 2500 km).[6] Birds breeding in eastern Canada are thought to fly from Baffin Island and Newfoundland via Greenland, Ireland, and Portugal to the Azores (crossing 3500 km of the North Atlantic) before flying onwards to Africa.[7] Other populations from western Canada and Alaska migrate by flying over much of Eurasia to Africa.[5]

Miniature tracking devices have recently shown that the Northern Wheatear has one of the longest migratory flights known - 30,000km (18,640 miles), from from sub-Saharan Africa to their Arctic breeding grounds.[8]

"The Alaskan birds travelled almost 15,000km (9,000 miles) each way - crossing Siberia and the Arabian Desert, and travelling, on average, 290km per day. "This is the longest recorded migration for a songbird as far as we know," said Dr Schmaljohann..[9]

二平

查了中文，翻译为穗鵖。
这小鸟能飞大西洋，还真厉害。

also from wiki:

The Northern Wheatear makes one of the longest journeys of any small bird, crossing ocean, ice, and desert.[5] It migrates from Sub-Saharan Africa in Spring over a vast area of the northern hemisphere that includes northern and central Asia, Europe, Greenland, Alaska, and parts of Canada.[5] In Autumn all return to Africa, where their ancestors had wintered.[5] Arguably, some of the birds that breed in north Asia could take a shorter route and winter in south Asia; however, their inherited inclination to migrate takes them back to Africa.[5]

Birds of the large, bright Greenland race, leucorhoa, makes one of the longest transoceanic crossings of any passerine. In spring most migrate along a route (commonly used by waders and waterfowl) from Africa via continental Europe, the British Isles, and Iceland to Greenland. However, autumn sightings from ships suggest that some birds cross the North Atlantic directly from Canada and Greenland to southwest Europe (a distance of up to 2500 km).[6] Birds breeding in eastern Canada are thought to fly from Baffin Island and Newfoundland via Greenland, Ireland, and Portugal to the Azores (crossing 3500 km of the North Atlantic) before flying onwards to Africa.[7] Other populations from western Canada and Alaska migrate by flying over much of Eurasia to Africa.[5]

Miniature tracking devices have recently shown that the Northern Wheatear has one of the longest migratory flights known - 30,000km (18,640 miles), from from sub-Saharan Africa to their Arctic breeding grounds.[8]

"The Alaskan birds travelled almost 15,000km (9,000 miles) each way - crossing Siberia and the Arabian Desert, and travelling, on average, 290km per day. "This is the longest recorded migration for a songbird as far as we know," said Dr Schmaljohann..[9]

雪月

走眼，就看成平常一菜鸟了，还以为是麻雀呢，哎，有眼不识泰山啊！怎么样也是一个超级小鸟啊！

昨夜雨

回复 二平 的帖子

二平兄看了那部名为《观鸟大年》（The Big Year，2011）的电影了吗？

二平

昨夜雨 发表于 2012-2-22 06:48 AM
回复 二平 的帖子

二平兄看了那部名为《观鸟大年》（The Big Year，2011）的电影了吗？ ...

没有。。。。。。。。。。

昨夜雨

回复 二平 的帖子

网上有，应该可以找到。是关于观鸟者的故事。相信你会喜欢。

二平

昨夜雨 发表于 2012-2-22 07:07 AM
回复 二平 的帖子

网上有，应该可以找到。是关于观鸟者的故事。相信你会喜欢。 ...

谢谢夜雨，回头我找找，外国的片子，还不容易找。