Not sure how many will agree with me on this but me personally if another group is hunting a field I just keep on driving. Generally I don't hunt public land except for doves but a couple years ago my father and I where hunting pheasant and quail on public land around Lucas and where not having any luck. We came upon some good looking habitat but was already being hunted so we just kept driving. We ended up seeing only one pheasant. Know of course you could always ask to hunt with the other group but I see nothing but problems with multiple hunting parties hunting a single field.