I once lost 23 racing pigeons to a pet ferret "that wouldnt harm a thing"
Arround $5000 to $10000 worth of birds and a breeding program that was over 10 years of work. Ferrets kill for fun and when I killed this ferret, the people reconed they would sue me. My lawyer wrote to them asking for $15,000 in recompence and they moved out the following day.
What Im saying is make sure that the wire and cage are totally pest proof from rodents through to dogs