Bantams tend to lay less than standards since they tend to be kept more for pets and broodies and not bred toward producing lots of eggs. Japs aren't too bad as far as pet bantams are concerned. Mine started laying mid winter at 5months old and have been pretty consistent. I was getting an egg a day from everyone for nearly all of January. Right now I'm getting probably 5 eggs a week from the hen in the coop and 2 eggs a day from the 3 inside. I've been told they average around 120-150 eggs a year. If you just want enough eggs to hatch then any chicken will give you plenty. If you want more than about 200 eggs a year you'll have to look more towards the ones that have been bred specifically for egg production.