I have four. They all come to their names and squeak on command. They don't really potty train, but generally will always go in one spot. They are one of the few rodents that actually crave human attention... even ignoring food for a few moments with their owner. All I know is that if I had gotten into prairie dogs 15 years ago, I never would have messed with other rodent pets.
Right now, all prairie dogs are illegal to sell/buy/trade or transport in the US because of the monkey pox scare last summer. The law is up for review at the end of next month and it is anticipated that it will be lifted and they will be allowed to be sold again. I don't know what Canada did about it though.
Please look up the proper diet of prairie dogs - if what I see in that bowl is what I think it is.