it is found on every continent except Antarctica and it is migratory except in Australia.3841
问题描述：
it is found on every continent except Antarctica and it is migratory except in Australia.3841
答
它们除了在南极 几乎所有大陆都能找到它们的足迹.除了在澳洲,它们在其他各个大陆都需要迁徙来生活