I don't claim to be the best turkey hunter ever, but looking for ideal habitat is rarely an issue in the western USA. I don't hunt far south where most people hunt Rios. At least here in SD, for our supposed Rios, and it's the same with the Merriams and mostly true with the Easterns as well. If you find good, doesn't have to be great, turkey habitat, you found turkeys, because for miles, and miles around that is poor habitat. I can only assume that is a similar case for the southern plains where most Rios are hunted. It's a whole different mindset than hunting easterns in the bit woods, but turkeys are still turkeys.
By good habitat, I mean significant enough trees to shade the ground. Some places out here can be so barren, a draw with a dried up creek not 50 yards wide can be the only real trees around for a mile and it will sometimes hold turkeys. You generally will not find turkeys in shelter belts or anywhere grass grows tall. If you can see wooded draws on google maps without zooming in much, you've found turkeys for sure.