How old are your bebehs?
I have been feeding mine some organic mixed greens torn up and plain old grass from my yard( no fertilizer etc). You want to make sure they have some chick grit when they start to eat different things. I have also given cooked broccoli( big fav) canned corn and apple and cuke bits. My chicks were about 2 weeks I'd guess.They will even go for little earthworms. I treat them once or twice a day. It has been warm enough in Oregon a few days ago that they could go out in a little pen for a few hours a day. I just watch to make sure they aren't too cold or hot with some shade always available and water. Hope this helps.
How old are your babies? Ours are 10 days old today. We introduced them to ground oatmeal at about 6 days, and a little grit and some really small crickets today. So far they've enjoyed both very much and are TERRIFIED of grapes??
As for yogurt, they'll toy with it some IF I dip my fingers in it then in their starter food. Don't ask why because I don't have a clue? I know spoiled and LOVING every minute of it...
Their grit by the way I bought at the feed store then brought it home and sifted it again as not to give them any pieces to large.
yeah i even cut the grapes in quarters. these are the same jurastic park chicks that stalked and hunted AND killed an flying little thing in their brooder just a few days ago. the grape thing was a real crack up...