I am new to guineas and have 16 Keets. They are about 4 weeks old now. I am having a hard time finding online if it's ok to feed them plant food trimmings, etc.... along with grit at this age? They are in my chicken house and I plan to let them free range in a few weeks. I'd like to start taking treats out to them now, and maybe ringing a bell or something beforehand to try to train them to come back into the coop at night. Thanks!