Turkey Questions

I'm a newbie to raising turkeys and bought these two as bronzed turkeys. After reading over other messages, I think they are girls. Please advise if you can though.
The first few weeks, they didn't eat much. Feedstock suggested a turkey feed to replace grain mix I made for chickens. Ive done this twice now and they won't eat much of that either. I give them a handful in the morning, they give a couple pecks, and then leave it. They are now 8 weeks and I still have (3) 3/4 bags full of the turkey feeds left, however, they have grown considerably in last 3 weeks. I think the only reason they come back and like us is because of watermelon. The first pic is them at 3 weeks, next is at 6 weeks, and last is today.
Is this normal eating/growth rate for bronzed turkeys?
They do free roam, eat the horses hay, and always seem to be shuffling feet to dig and eat something from dirt in pasture.
I'm thinking about letting them be and not trying any other turkey feeds. I didn't expect them to be this big already. Are there varieties of bronzed turkeys that are bigger/smaller, and perhaps I got the whopper version?
Any suggestions?

6 weeks old

Very nice looking turkeys!

I would think they are the heritage variety, since the broad-breasted version doesn't forage that well and would have to eat a lot more to grow.
I've heard that heritage turkeys are great foragers and can find a lot of their own food, or even all of it. I think they should be fine, as long as they are getting enough protein in their diet.

Best of luck!

8 weeks old

Is identifying a turkey as 'heritage breed' like identifying a hound or lab retriever as a 'hunting breed'? These two are still bronzed turkey? Pardon if silly question.

Bronze is a coloration, not really a type of bird.
Heritage breeds are just like you described. They are not a breed in themselves, they are more of a type. They are the way turkeys were originally before the fast growing (and generally not as healthy or hardy) broad breasted turkeys were created.

Heritage turkeys make by far better pets, as they have a longer lifespan and less healthy problems.

That is good to know about the lifespan. Since kiddos are having great time interacting with them, our once future thanksgiving dinner, will probably become permanent family pets.