这些化石还将有助于科学家研究早期鸟类的飞行机制。
The fossils will also help scientists work out the mechanics of how early birds flew.
中国东北发现的化石表明，有羽毛的动物很显然并不会飞行，同样那些看起来和鸟一模一样的动物也不会飞。
Fossils from north-eastern China show animals that had feathers but clearly could not have flown, as well as ones that look like proper birds.
与另一种较少飞行的鹮类化石进行对比后——Apteribis glenos——Olson和同事A . Wetmore在1976年对此进行了描述，始祖鸟是科学史上发现的首例较少飞行的鹮类样本。
Along with another fossil flightless ibis - Apteribis glenos - described by Olson and colleague A. Wetmore in 1976, Xenicibis was one of the first flightless ibis to be recognized by science.
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