Rock/Ground Squirrels - ELIMINATE?!?
New to Tucson, and have a problem with ground squirrels, who have made a giant sinkhole of my front yard. I tried mothballs in the burrows, sunflower seeds into a deep bucket (nothing!), allowing my dog out to "scare" 'em, and tonight resorted to rat bait cubes in the burrows. There is really no plant damage, since there really isn't much growing out there (imagine!)... But they are literally overruning the area and creating a dangerous situation for anyone trying to walk.
Any tips, short of guns, to get these buggers out of my yard? Or at least reduce their numbers?