Environmentalists sued the U.S. Fish and Wildlife Service over what it said was a decades-long delay in developing such a plan. The two sides settled the lawsuit this week.
About 2,800 of the adult thick-billed parrots still live in the wild, mostly in northern Mexico. Environmentalists say the last credible reports of naturally occurring flocks in the U.S. are from southeastern Arizona in 1938 and southwestern New Mexico in 1964.
A Fish and Wildlife spokesman says the agency will review Mexico's recovery plan and have a U.S. version available for public comment in 2012.