I agree. Been hunting pheasant on various public and private land areas of the front range almost every year since 1985 and have never been happy with the lack of roosters. It can be good hunting, but the "getting" is another story. I don't bother anymore, stopped doing pheasant here a couple years ago myself. If you want to make it worthwhile, better to go to Kansas, Nebraska, or better yet - the Dakotas. Hell, I don't even bother to hunt waterfowl here anymore. I go to Oregon and Montana for that . I only stay in Colorado for hunting big game.
If you're lucky enough to be on private land and can leave your stand up during the off season you can tie an old piece of cloth or something of the sort to your stand. I like to use an old camo bandana that I have. That way the deer get used to the movement and eventually don't bother even looking up when there is slight movement. This may just give you the time to draw your bow or raise your gun without being detected.