If I was you I'd try the softly softly aproach. Go up there, if you have kids stick em in the car with you, find the oldest looking bloke and just explain that they're your kids dogs, they aren't working dogs just family pets and you will have a lot more chance of getting them back than going in all guns blazing. I heard a story of this happening on here before, the older traveller said he was sick of the younger ones stealing dogs and giving them all a bad reputation and the bloke got his dog back. The traveller said they'd sort the lads out who'd nicked the dog as long as the police weren't