I would never go without a dog.... never. It's just not fair to the game or to yourself. One year I was without a dog and considered not going. That was hard to swallow so I asked by best friend to take his bird dog. This dog grew up with me and had been to SD pheasant hunting with us before, so she knew the game and she was obedient to me. First, I don't know if I could ever let anyone take my dog to SD pheasant hunting. It is tuff on a dog, I have never came away from a week in SD where my dog was not laid open from a wire, impalled with a stick or skinned by a fence, or sprayed by a skunk. Not to mention by the end of day three, the areas around their eyes and nose are a complete bloody mess. You have to be prepared. I would almost go as far to say I don't even like hunting without my dog or another dog i am handling working in front of me. Unless you are a blocker, the chances of a bird getting up in front of you without a dog working in front of you is very very slim. If I am hunting without a dog and I'm a walker, I am as close to the working dog as possible. Just as in TOP GUN, Don't ever ever leave your wing man. In SD, don't ever ever leave your dog. And don't every stop hunting until your dog is in the kennel.
It is unfair to you and to the game to go without a dog.
First to the game: If you happen to jump one and knock it down, good luck finding it unless you outright killed it and it happened to land on the road. Even with a dog, unless you are an experience hunter and your dog is experienced at finding dead or wounded birds, it is sometimes extremely difficult to find a downed bird. I would say your chances on finding a downed bird without a dog is 10% or less! Don't do it.
Second to you: It's not fair to you to drive and spend all that money to go and shoot birds you have very little probability of finding. It hurts bad to lose a bird. If you are a turkey hunter, then you know how it feels. My only goal for turkey season every spring is to NOT shoot and miss a turkey. Or worse yet wound a turkey. Likewise for my annual pheasant hunt. These are my goals pheasant hunting. In this order. 1. Come home safe. 2. Bring my dog home safe. 3. Don't loose and downed birds. That's it. Me and my dogs have always made it home safe, but I have never returned home without losing a bird. We have at least two seasoned, well trained dogs every year. It is amazing some of the finds they make and how few birds we would have without the dogs.
Bottom line in my opinion. Go and pay for a guide with a dog for as long as you can afford it. On the last day before you leave, take that last afternoon or morning and go to the best piece of ground you saw all week and go hunt it without a dog. Report back on your experience. Guaranteed you will never go without a dog or without enough money in your pocket to hire a guide with a dog.
Good luck, John