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Thank you for your response. Yes I know I have to find homes for 2 of my roosters, haven't had any luck yet.Hello, Cynthia, and welcome to BYC!Glad you joined.
Sorry for your losses.
You have some more problems with your setup (and flock) than just the lack of being predator proof.
You have way too many cockerels for the number of pullets. I'd rehome 2 of them or all of the cockerels.
Your coop is severely lacking in ventilation and is too small for the number of birds you have. Please visit the Coop & Run Forum for requirements for proper chicken housing.
Good luck with your flock.