本题属于细节分析题，由第二段首句“The crash was a major reason the U. S. Fish and Wildlife Service (USFWS)decided to formally list the bird as threatened”中的“major reason”可知答案应在第一段结尾部分：“But just some 22,000 birds remain today, occupying about 16% of the species’ historic range”，just 一词看出该鸟类数量今不如昔，即鸟类数量急剧减少“dramatically decreased”。题目2：The “threatened” tag disappointed some environmentalists in that it____
Awas a give-in to governmental pressure
Bwould involve fewer agencies in action
Cgranted less federal regulatory power
Dwent against conservation policies