We just had the best open day ever in northeast Oklahoma. There was 3 of us and we had to leave at 9:00 so my friend could make an appointment. We hunted the Cimmarron river and had 15 birds when left and i never shot a teal until about 45 minutes after shooting time started because i was holding out for the bigger birds. The mallards did not start working good until about 8:30 and we ended up with about 7 drakes, since we were short on time we finished with quiet a mixed bag: mallards, widgeon, teal and shovelers. I had 3 friends that hunted across the river from us and they killed their limit of 18 birds however they were mostly teal. We have alot of millet on the river this year so you better pray for cold weather or these birds are going to stay for awhile. I heard that Kaw lake is loaded with mallards and geese. Good luck and safe hunting!!!