Removing waterfowl-nest predators could affect songbird nesting success through subsequent increases in small-mammal populations.
清除水禽巢捕食者可能会通过随后小哺乳动物数量的增加影响鸣禽筑巢的成功。
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"Getting on your hands and knees, or going flat on the ground and crawling your way across, is how you find small-mammal fossils, " Rougier said. "It is not very glamorous.