Quarter sections of CRP, even 80s with mixes with lots of switch and big blue require diligent marking to effectively find even the dead birds, tall grass is a huge disadvatage to the dogs. Tons of birds and the scent they leave, is not optimal for the dogs either. When I hunt our CRP, I am delighted when we don't leave any downed birds behind, I hunt one other piece of CRP that is even thicker & taller, and we have the same issues there. Creeks and draws are an entirely different game along with shorter grass CRP are not nearly as challenging. Shooting doubles in the CRP is asking for trouble, I "try" (it takes the first week or 2 to re-learn this) not to do that when it is just me and my buddy with each of our dogs. I did take another fella and 2 of my cousins out in that CRP last year with us for a late season hunt this past season, 5 hunters and 5 dogs, we did lose one. I did get a triple, the last one I shot fell across the road and was instantly up & running in the bean stubble, one of the cousins with 2 dogs had his young lab run that one down, the other 2 other took at least 15 minutes to find both, and my old GSP didn't find either of those. The next bird that was shot was another 15 minute or so search by the pack. I hate to leave them, but it happens...we often intentional avoid hunting the switch grass as the recoveries are so difficult. If they are in my range, I am shooting, which may add to my losses. I will lose around 10 a season (only remember losing one not in the tough CRP parcels), appalling to people here.....I did recover 60 last season...as a percentage it does seem appalling. If I avoided the large tracts of deep cover, my losses would be minimal....but it is that deep cover that holds most of the birds.