Well it's come down to the last week of the season here in VA and due to multiple personal obligations (soccer and swim lessons

) I haven't been afield yet. I do plan on getting off work early this Friday though and hunting on Saturday. I haven't had the time to pattern any birds but I know several spots in my hunting area that are holding birds. Just wondering what a good strategy would be to try and roost some birds Friday afternoon/evening. What timeframe do they typically start flying to the roost? Should I hunt that evening or should I stay on the DL and just observe from a distance to better my chances on Saturday morning?
Thanks for any advice.