+1.
I'll also add that the sub-species you're hunting and the terrain has a lot to do with you're decision. As an example, In western Oklahoma, if you sit and wait after the birds have left the roost, you may be waiting all day for them to return to the area. These birds travels miles each day, scouting for food and loafing. In heavily wooded areas, such as you find the Eastern sub-species. more patience may bring success.