【摘要】 白鹤 (Grusleucogeranus)又名西伯利亚鹤、黑袖鹤。体长 1 3 5cm ,站高 1 40cm。体羽除初级飞羽外 ,皆为白色。全世界野生白鹤数量不足 40 0 0只 ,已经被IUCN红皮书列为全球濒危种类 ,CITES列入附录Ⅰ ,我国也将白鹤列为国家一级重点保护鸟类。据文献记载及现有资料证明 ,白鹤在我国为旅鸟和冬候鸟。 2 0 0 2～ 2 0 0 4年夏季在内蒙古图牧吉国家级自然保护区均记录到白鹤夏季种群 ,数量为 8只、7只和1 6只。这是我国首次记录到白鹤夏季集群。笔者对白鹤夏季行为及食性进行了初步观察。更多还原

【Abstract】 Siberian Crane(Grus leucogeranus) is large wader, which breeds in Russia and winters in China.It is listed an endangered birds in Red-date Book of the world,because only a total of about 4?000 birds can be found in the world.8 birds,7?birds and 16 birds were seen in Tumuji Nation Natural Reserve,Inner Mongolia in summer,2002-2004,which are the first record in summer in China.Summer behavior was observe.更多还原