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Turkeys do crazy things when introducing new birds to a flock, even hens, but I'm sorry, that is a hen you have pictured, and I 'm not guessing either. ALL bronze colored turkeys if they are a hen will have buff lacing on their breast feathers just like yours does. A tom will be all black, or solid colored. Also, the neck feathers just go way too far up for a tom on her. Compare the breats feathers of your new pair and you will see the difference I'm talking about.
Do post some clear pics though will be glad to take a look at them. BUT even hens will do what you said this one did. They are called boss hens in wild turkeys, basically a dominate hen. When I put new birds in with my wild or domestic stocks, often the first bird to kick their butt will be a hen. Yes, they puff up, drop their snood, make all kinds of nosie, fight and strut around them just like a tom would. The only think a hen can do that a tom can is gobble. Now if you hear it gobble, I'm wrong... But they can also in rare cases grow beards and have spurs.
But for sexing young bronze based birds, that laced breast is the first thing you will see that will tell them apart and is always 100% accurate, this is only in the young adult plumage though. All will have lacing in their poult feathers, but once they start to molt into adult colors, it's quick to see, usually happens around 4 months old.