June 2006, Rome - Migrating wild birds have played and will likely continue to play a role in transporting highly pathogenic avian influenza (HPAI) virus, or bird flu, over long distances.

2006年6月1日，罗马-迁徙野鸟对于高致病性禽流感病毒的远距离传播起到了一定的作用并将继续是病毒蔓延的一个原因。

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Like all good bird-watchers, he records every sighting in a notebook so he can track which species he has not seen before and which birds are migrating.

像所有好的观鸟，他发现记录每一个笔记本电脑，这样他可以追踪的物种，他以前从未见过这些鸟类是迁徙。

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The reserve is home to dozens of bird species and is visited by migrating bitterns.

BBC: Fire at Siddick Ponds

Researchers at Clemson University in South Carolina and Taylor University in Indiana earlier this year analyzed records of bird sightings dating to 1880 and discovered that ruby-throated hummingbirds are migrating to North America as many as 18 days earlier than decades ago.

WSJ: A Science of Signs of Spring