Actually it's not rare for hens to have a beard. Even if theres two in the flock. Not common, but not so rare.
Not rare for hens to strut either, all hens can if they want to, generally they are not strutting idiots most adult toms are.
Only toms gobble. Also only toms can do the dramatic color change on their necks and heads, doing a quick flash of deep red on the neck and either red or white or blue(or all those) around the faces. Also only the toms can very visibly expand and contract their snoods.. if you have one turkey with a snood that looks much thicker and hangs down more than halfway down the beak or down side of face.. that's a tom. Hen snoods stay thin and short even as adults.
Also look for the difference in the "naked" appearence of the throats and faces, toms tend to be very bare with a lot more bumps, they usually have 3 or so especially large bumps where the bare skin meets on bottom with the feathered part of front neck.
Try turkey calling or raspberring at the turkeys, toms often try to gobble back at that, although sometimes some young toms don't gobble so easily until they are older. Then they will never shutup.. gobbling at door slamming.. at a rooster crowing.. almost any sudden noise.. I had a tom that would gobble EVERY time a he could hear a woman talking. Every time.. Even if she was talking for more than a minute, he'd be gobbling madly along as long as she kept talking.