bird migration

基本解釋

Working out bird migration patterns was one of the triumphs of natural history.
找出鳥類遷移槼律才是自然學史上無數(shù)可嘉可賀的成就之一。
John:We've been able to learn a lot of new things about bird migration, especially about how fast and how far birds move.
我們獲取了很多新的信息，特別是鳥的飛行速度和距離。
As the lakes wetlands and wetland vegetation exists, a large number of migratory bird breeding, migration and distribution here, Forming a number of "Bird Island."
由於湖泊、溼地及溼地植被的存在，大量候鳥選擇在這裡棲息、繁殖、遷徙集散、形成衆(zhòng)多“鳥島”。
blog.sina.com.cn

They want to scrape bits of tissue from planes, discover which birds are most often being struck, and thus work out which bird-migration routes to avoid.
ECONOMIST: Taxonomy