For a growing number of species, mostly birds, the answer is yes.

对于日益增多的物种来说，特别是大部分鸟类，答案是正确的。

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Death rates for human infected are around 50 percent but, so far, humans have been infected mostly by direct handling with infected birds.

感染上禽流感的人类的死亡率是50%，但是迄今为止，被感染的人类大多数是通过与被感染鸟类的直接接触而传染上的。

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Heron Island, for example, is a speck of land on the Barrier Reef inhabited mostly by birds.

NPR: Pacific Island Cultures Brace for Climate Change

More than 300 birds, mostly guillemots but also some razorbills, have been treated at the RSPCA West Hatch centre near Taunton, Somerset.

BBC: Seabird deaths substance 'identified as oil substance'

Hundreds of birds, mostly guillemots, were washed up on the south coast of England three weeks ago, covered in glue-like polyisobutene (PIB).

BBC: First birds released after south coast oil rescue