I said 1/2 cup per bird and that was for adult birds on FF who free range on good grasses.
I do not want people to think 1/2 cup per bird covers all birds in all situations and I apologize if you think that is what I was doing. Adult laying chickens consume vastly different amounts of feed. Factors influencing feed consumption include, but are not limited to, breed type, how much they exercise, climate (including variations in temperature, wind, humidity and precipitation), the caloric and nutritional density of the feed, and how much natural feed supplementation they obtain.
Also, rodents and wild birds can greatly reduce the feed supply. This can be reduced by removing or sealing off the feed at night and fermenting the feed.
It is important, and enjoyable, to determine how much feed your flock is consuming. Begin keeping records of amount, type and price of all feed you purchase. Be sure to record both the measured amount of feed as well as its weight. Include the number and ages of chickens you have, right in the same page as the feed records.
This way you simply know. Good records makes good chickens.
I hate to have to clarify everything..but..
Ill birds and chicks are fed different than adults. If you are trying to put weight weight on a skinny or emaciated chicken you would not consider a normal feeding schedule or amount.
bantams and Large fowl are also fed different more for LF and less for BF.
above all else my measurements are suggestions and nutritionally based on free range birds and NOT caged birds. I do not have caged birds. All of my birds have grass between there toes even in breeding pens. Chicks are on grass after three or four days no matter the weather.
Nothing I say is concrete and what i say works for my birds and might not work for your birds. I have planted my yards full of nutritional greens like collards, clovers, wheat, herbs. I do not remove weeds because most are good for chickens..like dandelions, thistles and chickweed.