A av.pigeon weight is 14 oz you want them to have a good body and light, old fat is heavy, birds don't fly in this condition, so you need the new fat, look at the skin on the breast it should be pink and not white. If they are not exercising they could be too fat and not hungry, getting the balance right is a factor. Just remember some birds will eat faster than others, don’t have the feed in when you’re taking them in as the first ones will eat most of it, say if two don’t come in take the two oz off the amount you are feeding, that two will get the next time you exercise and feed. They will soon learn.Once you have this control increase a bit not much.I use mostly a oil seed mix,but do give them 50% protein on Thursday evening and Friday morning ,just a very light feed Friday morning for sending to race.