每年秋冬,大批的候鸟又踏上了迁徙的路途。它们或成群结队、或形单影只地向着自己的“伊甸园”飞去。不同的鸟类迁徙的时间也各自不同,大型鸟类以及猛禽由于体形较大或由于性情凶猛天敌很少,因而常常在白昼迁徙,夜间休息,以便利用白天由于日 Every autumn and winter, a large number of migratory birds embark on the journey of migration. They either flew in groups or flew toward their own “Garden of Eden.” Different birds migrate at different times, and large birds and birds of prey often migrate during the day and rest at night due to their larger size or their less ferocious natural enemies. As a result,