Wow Ghostbear, that's a dramatic change from your usual patterns. Are you seeing predation, i.e. carcasses or road killed birds? Its seems odd that in a 2 year period, such an area with the population you speak of could be wiped out so quickly. Are any trappers working the zone or area you hunt? Trappers can do a nice job of thinning out the predators. Plus, I know that certain winters result in a higher mortality on birds, depending on snow and extreme cold. This past winter wasn't bad at all; there should be a decent amount of survivors in that area. I'd be curious to see what a biologist has to say after studying that area. Bird disease epidemics perhaps, avian flus or the like. If I could hunt here where I live, I could get up at 6am, have coffee and breakfast, take my shotgun, go for a 1/2 mile walk and kill at least 2-3 birds in 30 minutes or less. Last night coming home from work I saw six... 3 jakes and 3 longbeards on a lawn 4 blocks from my home. We got turkeys living in our yards now. The zones I hunt have a good amount. I hope your area has a renewal as nature usually does every few years and the birds repopulate. Good luck GB