Ya I now what you mean. We hunt public land (Woodbury ) in Coshocton. We do a tally of the birds just by listening because we hunt the 3rd week of season , most birds are call shy by then , so some morning's I won't even hear birds the 3rd week but I know they are there ,they all won't get shot . I think it was 4 years ago 4 of us hunted the 3rd week and got 5 long beards not bad for public land ...every body swore we were hunting private. We never done that good since lol but that's hunting. I believe it had all to do will listening pre-season and knowing where they were before they shut up or hen up .