黄河三角洲发现环志大天鹅

（文：单凯　图：孙劲松 鸣谢:白清泉）

AO5

与野生动物保护联盟，亚洲兽医组织(Wildlife Conservation Society, Field Veterinarian - Asia) 马丁.吉尔伯特（Martin Gilbert）取得联系后证实，黄河三角洲发现的环志大天鹅为2007年7月在蒙古北部达克哈德省环志的大天鹅。据马丁.吉尔伯特介绍，2007年7月，在蒙古共环志了30只红底白字的大天鹅（其编辑为A01-A30）, 这是全球禽流感监视网络(GAINS)的项目之一，其目标在于通过野外合作，提高对野鸟禽流感传播方式和途径的认识，以便为各级政府、国际组织、个人机构和社会公众提供科学指导。通过环志鸟类的捕捉、观察，野生动物保护联盟还可以获得鸟类迁徙、分布及数量的基本信息。

黄河三角洲发现环志大天鹅的消息反馈给马丁.吉尔伯特后，马丁.吉尔伯特非常高兴，并给予了高度评价，他说：大天鹅环志地点距东营直线距离2150公里，这是今年夏季他们在蒙古环志的水禽中第一个野外观察回收记录！对孙劲松提供的环志照片在加赞赏，认为这是迄今为止，他所收到的最为精彩的野外目击照片!

(资料提供:白清泉)

Alert: Colour marking of swans and geese in northern Mongolia

Greetings All,

I am pleased to announce the successful capture and marking of several waterfowl species while sampling for avian influenza in wild waterbirds in Mongolia during July 2007. During the course of fieldwork this summer, a subsample of 30 Whooper Swans, 50 Bar-headed Geese and 21 Bean Geese have been fitted with coloured neck collars in Hovsgol aimag (province) in northern Mongolia. Details of collars fitted are given below, and are illustrated in the attached photographs.

* 30 Whooper Swans fitted with red collars with white lettering (A01 to A30)
* 50 Bar-headed Geese fitted with yellow collars with black lettering (A0 to A9, B0 to B9, C0 to C9, D0 to D9 and E0 to E9)
* 21 Bean Geese fitted with yellow collars with black lettering (P51 to P71), also fitted with numbered metal leg rings, with bands on right leg indicating females and left leg indicating males (based on cloacal sexing). All Bean Goose collars were supplied by our collaborator Thomas Heinicke.

I would be very grateful if observers in Asia could be alert to the presence of neck collars when observing these species through range states (including those in Central Asia, Korean peninsula, China, South Asia)
Please report any resightings to myself, Martin Gilbert at mgilbert@wcs.org. News of resightings and the details of the rest of our work will be posted on the GAINS website, www.gains.org. Please also forward this message to others working in the region who may be able to contribute resightings.

This work has been carried out as part of the USAID-supported Global Avian Influenza Network for Surveillance (GAINS). The primary objectives of GAINS are to expand operational field capabilities, improve the understanding of viral strains and transmission of all strains of influenza viruses in wild birds, and to disseminate information to all levels of governments, international organizations, the private sector and the general public. Through this work the WCS seeks to contribute to our understanding of migratory movements, distribution and population status of wild birds.

Further alert to wader marking in northern and central Mongolia
Fieldwork is on-going, and in addition to the above announcement, the GAINS team in Mongolia will be fitting coloured leg flags during the southward migration period over the next few weeks. Capture and marking of several species is anticipated including Ruff, Wood Sandpiper, Sharp-tailed Sandpiper, Red-necked Stint, with other species marked depending on availibiltiy of supplies. These birds will be fitted with leg flags coloured Blue over Green on the right leg. As with the swans and geese, please report any resightings to myself at the e-mail address above.

The material for these leg flags has been obtained through the kind assistance of Clive Minton and others with the Austalasian Wader Studies Group.

Best wishes to all,

Martin

Martin Gilbert
Field Veterinarian - Asia
Wildlife Conservation Society