Bullfrogs are a species native to the United States and Canada. They live in damp habitats, such as rivers and ponds, and tend to be most active at night, when they feed on insects. Unfortunately, they can also be a very invasive species that reproduces very quickly and can take over an environment. Their presence isn't entirely destructive, as they control insect populations, but having too many in one's yard can become very noisy with the bullfrogs' croaking all night. Control the population of bullfrogs in your yard by laying traps.
Locate or install an outdoor light in area of your yard where you will dig a hole large enough to bury a 5-gallon bucket.
Dig a hole in the ground deep enough to sink the bucket. Make sure the hole is marked with small flags or signs so that you don't catch a person.
Place the bucket into the hole. The rim of the bucket should be flush with the surface of the earth.
Leave the light above the bucket on at night. The light will attract insects, which in turn will attract bullfrogs to eat them. As they jump in an attempt to catch the bugs, unlucky bullfrogs will fall into the bucket. Once entrapped, the bullfrogs will be unable to escape.
Place your funnel traps against the edges of buildings and fences in your yard. These traps are designed so that any small animals, including bullfrogs, cannot escape once they crawl inside.
Check on the bucket and funnel traps every morning after you have installed them. If the bullfrogs are left in a trap for too long, they can become dehydrated and die.