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雁趣 (Canadian Goose) revised

(2008-03-07 19:33:04) 下一个

加拿大雁是北美地区最普通的雁种。从北墨西哥到加拿大到处都可以看到它的足迹。它体型大,适应性强,繁殖力也强,在所有的雁种中属受保护程度最低者。事实上在很多地区,例如大纽约地区,已经雁满为患。几乎所有的公园绿地,只要有水,便有加拿大雁。就连我们每天jogging的学校田径场上,也经常有成群的加拿大雁出没,有时跑道上的雁粪多到下不去脚的地步。加拿大雁的头和颈也是黑色,翅羽为褐色。它的白色标记是在腮帮子的部位,这是它区别于其他雁种的最重要特征。加拿大雁与中?<?拇笱闶敉?焕嘌恪?br />020308bbg-253a1-2.jpg picture by qqqny
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