The gophers have made it clear that they were here first and aren't leaving without a fight. I've tried traps, smoke bombs and even flushing them out with water from the hose. All to no avail. Our biological controls (our cats) were working OK. Like the gophers, Max the Cat also came with the purchase of the farm (although I don't remember seeing him mentioned in the lease agreements). Max survived on gophers for the 1.5 months we were in escrow and continued to be his favorite food after we realized he wasn't a neighbors cat and he was our responsibility. Unfortunately, like all bad ass tom cats, Max would not be contained indoors after dark, and eventually he and a coyote had a run in. I like to think he took a piece of that coyote with him before the end.
What I really want is a Rondenator, but I can't justify spending $1,600 on something that blows up gophers (a little too much like the movie Caddy Shack). Which brings us back to the owls.
Right around the time we moved in, that OwlCam thing online was really big, my dad kept sending me the links, so eventually I too got sucked into watching baby owls eat various rodents for hours on end. It was here I learned that nesting owls can consume something like 3,000 gophers a season!! So I promptly built my first owl box and precariously hung it in an old pepper tree on our back hill, and to my surprise someone promptly moved in. Unfortunately it was bee colony. Owl box #1, Fail!
I currently find myself with a lot of free time, so I decided to try again. This owl box is complete with metal roof and is attached to 4 separate branches in a tall lemonade berry via hooks and wires. My thought was, if it fill with bees again, I can lower it down by the wires and scoop out the bees and put them in our unoccupied hive (currently Sarah's project).