My parents' poor excuse for a terrier just sat there and stared at mice taking its food away at night. Mini fox terrier instead of rat terrier though. Maybe they're just only interested in foxes.

I suggest Jack Russells with some Yorkies for the bigger ones. If you have some lions causing trouble then a few of your Border Terriers is indicated along with a pack of Rodesians.

There were a lot of rats in that fairly small area of that large field in which they were digging.

Were they digging in some specific place they knew would have an especially high rat concentration (a nesting area perhaps?) or is the whole large field that dense with rats and that's just where they happened to be working at the moment?

We have gophers in our field. There is one single feral cat in my farm that’s is rather good at catching the gophers. Chihuahuas too do a great job.

We set up some owl shelters and raptor poles. Snakes, cats, raptors are all predators. All of them unavailable in cities where rats don’t just survive, they thrive!

Gophers are a big problem. As it’s an organic farm, pest control options are limited. A few years ago, someone came to test their sonic gopher eradication system. Using sound waves. I don’t know if that would work for other rodents.

Squirrels are just rats with a bushier prettier tail. We love squirrels. Weird.

Whoa very ... interesting video.

Makes one feel fascinated and troubled at the same time.