There's plenty of birds. Since you're apparently from Pennsylvania, the terrain shouldn't be a problem for you. One thing that I would urge you to be aware of is that not all of the GW NF is in Virginia. It runs into WV as well and they're quick to write a ticket if caught on the opposite side of the line. Not that it's heavily patrolled but it's patrolled enough that I'd want to know the line. As for entry points, again, consult a map. There should be access points marked and you can pretty much go from there.
