红脚隼（阿穆尔隼）的迁徙路径

红脚隼（阿穆尔隼）的迁徙路径

据东方鸟类俱乐部邮件组消息，Bernd Meyburg 和他的研究团队对7只红脚隼（阿穆尔隼）做了卫星定位追踪，并于近期的两次会议上发布了相关数据结果……

Extracted from www.kestreling.com:[/url]

Amur Falcon migration route finally plotted

Bernd Meyburg and his team has presented the first ever satellite tracking

data for Amur Falcons at two conferences, one in the East (Asian Raptor

Research and Conservation Network conference, Mongolia) and one in South Africa

(Birds of Prey Programme Conference, Kimberley).

The information gathered on 7 tracked Amur Falcons most probably represents

the most exciting satellite tracking data from raptors since the first long

distance raptor migrants were tracked. The Amur Falcon has one of the

longest raptor migrations, but is also unique because it supposedly flies a long

distance over the sea. It was believed that they flew mostly over land

during their return journey, but data from Bernd has shown that they fly a

distance 2,500 to 3,100km over the sea in spring and do this by flying non-stop

for between 2 and 3 days.

Other interesting information presented include that there is quite a lot

of movement between roosts in their wintering area, they have stop over

points on their migration route back to the breeding grounds, and fly south of

the Himalayas in northern India. They are also capable of covering huge

amounts of distance in a few days and were able to travel up much of Africa in

only a few days.

They have now arrived in their breeding grounds and hopefully Prof Meyburg

will be able to track their return route back to South Africa at the end of

the year. One wonders if they will return to the same roost?

Project to track Amur Falcons - 2010-01-11

Satellite tracking of raptors on migration has become an indispensable tool

in studying the routes taken by birds. It is especially useful when used in

areas where there are little chance of recovering ringed birds.In the past,

it was not possible to track any of the small falcons due to the size of

the satellite transmitters. However, in 2009, the first transmitters became

available that were small enough not to affect the survival of the birds

(typically <3% of the body mass). Several studies have used these, including

those on Eleanora's Falcon, Sooty Falcon, Hobby Falcon and Redfooted Falcon.The

Amur Falcon stands out as one of the most interesting birds to track. It

migrates over a very long distance (eastern China to southern Africa), it has

different routes to and from its breeding grounds and it supposedly flies

several thousands of its journey across the sea.Bernd Meyburg visited South

Africa in January 2010, and with the help of Zephne and Herman Bernitz and Rina

Pretorius and Sylva Francis, all volunteers of the Migrating Kestrel

Project, trapped 10 Amur Falcons at the massive Newcastle roost and fitted

satellite transmitters to these birds.Already the data collected from these birds

have shown that they are capable of moving large distances each day, and do

move around between roosts. We look forward to watching them as they move

back to their breeding grounds, where ever these are!

[url]http://www.kestreling.com/