Fair question. Just acted like a hen I guess and also I suspected it was a bearded hen based on size alone. I saw her for several years in the fall up close (10 yards on a couple occasions) multiple times and maybe during the spring a few times at distance. I never saw spurs on her/it/shim but did on the toms with her. Never really paid attention to the plumage till it was mentioned here by Mr. Williams. Somewhere around that time I posted the video here and he confirmed my suspicions, if that is possible from the video alone. That post is long gone, I requested to have my account deleted thereafter for other reasons and OG obliged. In doing so it removed every post I made under that account name. So, I have nothing but memory and my word as reference for Mr. William's comments. I'm convinced it wasn't your normal turkey and definitely had a hen's head. Beyond that I don't claim anything else other than it acted like a hen and sounded to my ear like one. Had never run up on anything like this but have since seen pictures of hermaphrodite wood ducks, drake plumage and hen eye/bill coloration so I guess it occurs in other birds as well. And I think I got the spelling and am using the term correctly, "hermaphrodite".
And I am not saying that the OP's bird was a hen with gobbler plumage, just further supporting the idea already offered.