An endangered Houston toad has been spotted in restored habitat for the first time in more than 50 years, marking a promising milestone in ongoing efforts to save one of the nation's most endangered amphibians.

The U.S. Fish and Wildlife Service announced that a male Houston toad was recently found on private property that had been restored through conservation efforts.

The site is one of three locations where biologists released approximately 170,000 Houston toad eggs in April as part of a larger initiative to rebuild the species' wild population.