We have golden comets which are similar. They have access to plenty of grass and we move them once a week to fresh grass. We have 16 birds and they eat about 100 Ibs. a month of feed. That's 25 Ibs per week, 3.5 Ibs a day. So for one bird, that's 6.25 Ibs a month, 1.5 Ibs a week or .2 Ibs a day.