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Song, 55, director of the forestry station in the county's Shierdaogou township, has built 21 artificial nests along the river, helping rare birds, such as Chinese mergansers and mandarin ducks, hatch ...
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Sciencing on MSNWhy Are Many Male Birds More Colorful Than Females?Among the birds of the world, it is usually the males who have the brightest feathers and the females who are the most drab, ...
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