Endangered Species Act Doug McPherson of New Hampshire Public Radio reports that peregrine falcons may be taken off the Endangered Species Act list. Thirty years ago, the peregrine was in danger of extinction. When Congress passed the Endangered Species Act in 1973, the falcon became one of the first animals listed as "endangered." Today the falcon is making a strong recovery and the government has proposed to remove it from the Endangered Species list. The proposal comes at a time when the Endangered Species Act is facing criticism. That's prompted speculation that the government may be responding more to political pressure than to scientific evidence.