I'm actually not sure, but I do it all the time. I wouldn't do it during hunting season. The only dead head that I know is illegal for you to possess without first having inspected and sealed is bighorn sheep.
I haven't heard or read if you can do that yet in Colorado. I know of a real nice 6x6 bull skull and antlers that was confinscated at the USFS building in Minturn, Co. a few years ago. One of the workers had brought it out and it was in front of one of the employe housing houses.
Arizona I believe is the same as Colorado.
Now I do know that in Utah if you find one you need to get the gps location of it and report it to the DOW and then they will check it out and if all is well they will issue you a permit to have it. That doesn't do you any good when you find it down in the bottom of some nameless canyon that you don't want to hike back into but at least if you want it that bad you can get it.
In the darkness, the hunter stumbles through the underbrush, making noise and leaving his scent seemingly EVERYWHERE!
Daylight will be here in 30 minutes and he wanted to be in the stand an hour before daylight.
"I know I left that stand RIGHT in this area last night," he mutters under his breath, "but where is it now?"
He traipses back and forth in a zig zag pattern, getting himself overheated and sweaty, but never finding the stand he left there the previous evening – and eventually sits on a...