Personally since you are only planning to get 2 or 3 birds, I would give them a warm bath in cat/dog flea/tick shampoo with an insect growth regulator (follow directions on the bottle). Wrap in a towel to absorb moisture and after about 15 minutes use ivermectin pouron in hte sing pit or back of neck. Then blow dry. Keep in a warm area for at least 24 hours.
I'd ask for a small amount of her feed so tha over about a week you can wean them from hers to whatever you choose. Start at about 50/50 and gradually decrease the amount of hers that you use. Personally I would be feeding a gamebird grower at 5 months, and as I said, supplementing with some grains (wheat, oats, rice), fresh fruits and veggies, oil seeds (safflower, black oil sunflower) and possibly bird vitamins such as Avia Charge 2000 or calf manna.
I'd ask for a small amount of her feed so tha over about a week you can wean them from hers to whatever you choose. Start at about 50/50 and gradually decrease the amount of hers that you use. Personally I would be feeding a gamebird grower at 5 months, and as I said, supplementing with some grains (wheat, oats, rice), fresh fruits and veggies, oil seeds (safflower, black oil sunflower) and possibly bird vitamins such as Avia Charge 2000 or calf manna.