I had two pullets; when one died of cocci a few days in (still sad!), I replaced her with a chick of the same breed since the breeder didn't have any more pullets. Thankfully, the chick and remaining pullet (about 8 weeks old) get along famously-- the chick, in fact (about 2 weeks old) is turning the pullet into a surrogate mother, snuggling underneath her in the evening. The pullet is down for this-- she fluffs up and tucks the chick under and it's pretty freaking adorable. BUT...what's the risk the chick could get suffocated accidentally? I hate to separate them if I don't need to, but this is my first go round with a chick so small! Thoughts?