测量了黑凤鸡种蛋的蛋重和蛋形指数,研究蛋重和蛋形指数对黑凤鸡种蛋孵化率的影响。
The egg size and index of egg shape were measured to study the effect of egg size and index of egg shape on the hatchability of breeder egg of Heifeng hen.
在第二年的八月,他在大凤头燕鸥的繁殖地发现了很小一堆黑嘴凤头燕鸥的巢。
In August of the second year, he found a handful of Chinese crested terns nesting among a colony of greater crested terns.
小岛周围是棕色的激流。当我们靠近,可以发现,头顶上有大量的大凤头燕鸥、黑尾鸥盘旋,鹇白鹭飞在最外边。
Around the islets, a brown riptide; above, as we approached, a swirling ball of greater-crested terns and black-tailed gulls, with Swinhoe's egrets orbiting around the outside.
小岛周围是棕色的激流。当我们靠近,可以发现,头顶上有大量的大凤头燕鸥、黑尾鸥盘旋,鹇白鹭飞在最外边。
Around the islets, a brown riptide; above, as we approached, a swirling ball of greater-crested terns and black-tailed gulls, with Swinhoe's egrets orbiting around the outside.
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