I never heard of a game camera, but I'll look into it - I'm thinking it must be a kind of video recorder? I'm pretty sure I won't be able to borrow one because I don't know anyone who would have one.
And re dogs, we do chase them away when we see them, which is actually rare, like twice this year, but we haven't confronted any owners yet - though let me say that one unknown neighbor did call Aninal Control when my Pomeranian wandered, so I have no problem returning the favor if I can catch them over here. Especially with things being attacked.
Thanks for the information that foxes can smell skunky - didn't know that!
I did carry off the carcasses today - could have done it last night but I wasn't sure what I would do about reporting what happened, which was nothing. Next time I hope I remember that reporting something the next day is too different, evidence-wise, to be of any use. I hate to contact the authorities for fear I'll be the one on the wrong side of the law for some reason about keeping the birds.
All birds were locked up inside the pen all day today and I was able to prove to myself that they can't get out under the gates because I've made some rolled wire blockings. The turkeys can fly to the top of the fence or over when they want to, though - but the one who is injured is too heavy to fly.