Hello there and welcome to BYC!
Good luck with this issue. You need to cover your chicken wire with 1/2 inch hardware cloth. Most critters can chew, bend and break chicken wire. And once they get one of your birds, they will come back until they are all gone. So it is time to revamp your coop and run.

Good luck with this issue. You need to cover your chicken wire with 1/2 inch hardware cloth. Most critters can chew, bend and break chicken wire. And once they get one of your birds, they will come back until they are all gone. So it is time to revamp your coop and run.