migratory bird

基本解釋

for photo of Northern Harriers, Bear River Migratory Bird Refuge, UT
這張白尾鷂照片攝於猶他州貝爾河候鳥保護(hù)地。
Bird Island in Qinghai Lake on the hundreds of thousands of migratory birds.
青海湖鳥島上有數(shù)以十萬計(jì)的候鳥。
08translation.cn
It is the first time that the reproduction of this kind of migratory bird has ever been recorded.
這種候鳥的繁殖成功的記錄，在杭州尚屬首次。

Commercial harvesting of waterfowl all but ended with the Migratory Bird Treaty Act of 1918.
FORBES: Duck Calls
Their case is that the park could violate the Endangered Species Act and the Migratory Bird Treaty Act.
ECONOMIST: Wind energy and politics
They include Obstruction of Congress, misconduct, neglect, violation of the Clean Water Act and the Migratory Bird Treaty Act.
FORBES: BP's Federal Contract Ban Will Hurt U.S. Taxpayers, Not Just BP