Hello, Charlie, and welcome to BYC! Glad you joined.
It sounds like you will eventually need to rehome or otherwise remove some of the males from the flock. Good luck.
Ask these folks about making your coop secure from predators and send us some pics of your new flock so we can help you identify all of the birds. Thank you for joining and posting..
Predators can be tough to deal with. Removing 1 only opens the door to another waiting to get into your territory. You may need to add electric fencing or keep your birds in a large secure run.
Hi! . Welcome to BYC! I think if you continue to free range, you will need to cope with the occasional loss. @Shadrach could probably give you some insight on that. Best of luck with your flock!