as a predator only hunter i wouldn't take a shot at a dog (coyote speak in AZ) with a .22, just not ethical as you would have to be really lucky or be a fantastic shot at night with shot placement. I got 59 dogs, 22 greys, and 10 bobs last year with the dog tails kept and tanned, the others tubed and sold at the fur auction. minimum of .223 for dog size and above, like mountain lions out here (always have a tag in my wallet) with 75 grain TAP or 55 grain Fed soft points, depending what AR i use and it's particular twist rate.
as for that fox, its a nice grey with a little red, very nice, would have put a choke pole in there and he would have gotten $25 bux at the auction.
we in AZ just got hunting with unlimited ammo (instead of only 5 centerfire, and now we can hunt with cans so my NFA stamp collection can now be used hunting instead of at the range) We have no season on dogs, but fox and bobs have a long season but starts just a little later in the fall.
i really only use the 15-22 on jack's and cottons, we don't have squirrels in the wild this far down south, or i'd have a pot full of them. No pics with game and the 15-22 since i didn't think anyone would ever ask for pics with something taken. buddy of mine, he had his 10/22, i had my 15-22 and a Ruger MKII w/Cmore site, and we took 65 jacks (no BS)! kept throwing them in a pile.
the Dole company and the other citrus companies love you to shoot the jacks since they chew holes in the rubber drip lines that feed their orange/lemon groves. there are literally hundreds of rabbits in a small grove.
when we went back the next day, the dogs had a smorgasbord cause the pile was gone, except for fur and bones!!!!
I'll start taking pics when we go out, it is dove season now so i'm busy with birds for the next 2 weeks.