Don't know about near Philly, but outside of Harrisburg is a place I have been to called Martz's Gap Veiw Hunting Preserve. Tried to put in a link but their webadress is "pending renewal" so no luck. But if you want to check on prices, etc their phone # is (570) 758-1535

You can hunt your dogs or with "theirs". They do everything from single hunters to big groups, feild or continental, single day or "season passes".
Like anywhere, some of the guides and their dogs are better than others and repeat customers and good tipers tend todraw the best guides.
But it isn't bad at all. Better than some places I've been.
If it wasn't almost 2 hours highway from where I live I'd probably have a season/yearly pass for birds with them for myself.