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When they returned home, their droppings end up all around their nesting sites, including in nearby ponds.
出自-2016年12月听力原文
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Some 10,000 pairs of the birds, called fulmars, a kind of Arctic seabird, make their nests on Devon Island, north at the Arctic circle.
出自-2016年12月听力原文
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And instead of showing just the typical pair of eggs in a hummingbird nest, she painted four.
2018年12月六级真题（第二套）阅读 Section B
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So far this year, water levels have been too high for the flamingos to nest.
2017年12月六级真题（第三套）阅读 Section C
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Three-quarters of the world's flamingos fly over from other salt lakes in the Rift Valley and nest on salt-crystal islands that appear when the water is at a specific level一too high and the birds can't build their nests, too low and predators can move bri
2017年12月六级真题（第三套）阅读 Section C