I have actually discovered that the doe beds change depending on the time of year. i.e. In spring, they will bed in their birthing area; early summer, close to green food sorces, summer, where ever they want, late summer, close to beans and other ag. food, ect... The buck always seems to travel back to his "home" bed. The mature bucks any way. During the rut, they may bed near does, I don't know for sure. I do see the buck beds been used all year, and the doe beds changing from season to season.
The only time I have seen bucks change their bed sight, all things remaining constant, is the use of a low, damp or even wet area, if it really gets hot in the middle of summer. It's almosy like the Wisconsin/Florida thing for humans.
I'v had does bed right in the food plot, when the crop is at it's peak. The only time i've seen a buck do that is during the rut. If the doe beds down in the corn, or milo, or sorgum, or whatever, the buck will bed with her also, until she is bred.
Any other observations or thoughts?