Ian Carter, a co-author of the report and an ornithologist for Natural England, told the Guardian: "any time you add any kind of weight to a bird, it will have some kind of effect."

报告的另一名协同作者兼自然英格兰鸟类学家，伊恩·卡特，告诉《卫报》说：“不管你何时给鸟儿增加任何负担，它都会产生一定的影响。”

youdao

Totem: an animal, a plant, or a natural object serving among certain tribal or traditional peoples as the emblem of a clan or family and sometimes revered as its founder, ancestor, or guardian.

图腾：一种动物、植物或自然物体，在某一部落或传统民族中作为一氏族或家庭的象征，有时被尊为其创建者、祖先或守护者。

youdao

And who should lead that effort? PEW Vice President for Policy Analysis and the report's co-author, Stephen Seidel,says the federal government should lead, as the nation's largest landowner and the guardian of its natural resources, national parks and highways, bridges and dams.

VOA: standard.2010.06.14

Its origins lie in an ancient practice of worshipping nature and its guardian spirits by emulating natural sounds.

UNESCO: Culture