When I was a high school kid I made a little money hunting prairie dogs for local farmers. I used my Dad's old Winchester model 62 pump .22 rifle, with the basic iron sights. The prairie dogs had towns of maybe 10 or 20 individual tunnels, with a pile of dirt encircling the opening of each tunnel. I would find a way to sneak to within 50 yds or so, using natural cover and low spots to slowly belly crawl until I was within that range, without showing myself at all. The prairie dogs would be out doing their thing, eating and messing around, but keeping a watchful eye on everything. The trick was to not let any of them see me before I was within range and had my rifle aimed at them. I would line up on the closest one, aim for his head, and take the shot. I only wanted to hit them in the head, because that would drop them instantly and they wouldn't run down their hole to die, and get lost down there. I needed their tails in order to get paid. So after that shot I would just keep laying there, or maybe move a little to a better spot, and wait. After 10 minutes or so I would start seeing little clods on the dirt piles around the holes getting bigger and bigger. Pretty soon a clod would develop a black dot. That's a prairie dog's eye and he's slowly raising his head, looking around for danger. I would keep laying perfectly still, barely looking under the bill of my cap, watching and waiting. After another few minutes one of the prairie dogs would stand up and start looking around. When he decided things were safe again he would start chirping and then all the other prairie dogs would stand up. It was pretty cool to see. They looked like little zombies popping up out of their graves.Then I would pick out the easiest shot and shoot. Down they would all go again. This process would repeat maybe one more time, and then they would all just stay down for a long time. So I would go get my prairie dogs and move along. So it was one shot, and wait, another shot and wait some more, and then maybe a 3rd shot and that was it for a few days. I think I got 50 cents per tail and that was pretty good money. A gallon of gas for my Cushman scooter cost 30 cents, an ice cream cost a dime, and a box of .22 long rifle shells cost 75 cents. That was a long time ago. A nice modern scoped .22 rifle would be great, but one advantage of the old timey iron sights was that my rifle and I didn't show up very well. It made me harder for the prairie dogs to see. I still have that rifle. It's taught a bunch of kids and a couple of adults to shoot over the years.