we built this little play yard for our 3 chicks who are 4-5 weeks old last night. I was so happy because I figured it would be perfect for the in between phase since they hate being in their brooder box and won't be in their coop until next week. We ordered the coop online and are waiting for its arrival. They love it but I'm worried about pests like rats. I know we have rats in my neighborhood and we have an exterminator coming out tomorrow since they chewed out internet chord. The plan was for them to hang in this during the day and sleep in their brooder at night. Thoughts?