After six years and thousands of euthanized bullfrogs, a campaign to control the invasive species in the Upper Deschutes Basin is starting to show results. The number of bullfrogs visible in pools of ...

PORTLAND, Ore. (KOIN) — The Oregon Department of Fish and Wildlife is educating the public about some of the state’s most harmful invasive species for National Invasive Species Awareness Week.

Following decades of decline, the population of Oregon spotted frogs in the Upper Deschutes Basin is showing signs of a rebound, a signal that the region’s unhealthy wetlands are beginning to recover.

As the largest frog species in North America, the American Bullfrog can easily be found in ponds, lakes, and rivers throughout the southeast. Their unique, deep-toned croak can be heard from hundreds ...