Big toms like to roost near and over water. the pines more than likely hold your hens as they are smaller birds, the hens like to stay out of the wind as well. Toms on the other hand are or could be to big for the pine limbs,, as well toms like to strut around in thier roost trees so pines dont work that great as the limbs may break under thier wieght.. as far as not being in the same spot summer spring and fall they might be it all depends on the birds..Cameras are a great way to keep track on your turkeys. When it comes to hunting them you have to ?feel? out the birds. if they have not ever been called to they might be easy to call but they wise up quick. I found that if you go to where the hens fly down to the toms usually come in a short time later.. that being said I like to try and "cut off" the birds in route to their hens it works well in the spring and when (if) the toms dont responed to calls..as well I try to get in close to the toms roost,, as early as possible. toms don't like to fly out of thier trees as it expels to much energy. so they drop out of them landing within thirty or so yards from there tree. but that being said I have also busted or flushed them out of there roost so it is a tuchy deal on how close you can get..

good luck