I promise you that there are small roosts of Juvies scattered throughout South Dakota. I speak from experience because I have hunted them for the last week. We were putting on many miles looking everyday. Are there a ton of birds? No. But it only takes a couple thousand dumb birds to have a killer hunt. Hunt them like you would in the fall, find them, get permission, and set on them for the morning. I just left there and wish I could've stayed for another week. I'd rather hunt 3000 dumb geese then a million smart ones. The days of setting a spread on a hill and waiting for migrators are over but there are still birds to be had if you put in the windshield time.