I took pictures, but they’re pointless. All you can see is feathers. But they have a sharp breastbone. I mean you can clearly feel it when you pick them up underneath their legs.
In the days when I used to buy a chicken, to eat, there was muscle on either side of the breast bone. Now these were chickens raised for slaughter, so maybe they were different, genetically.
They have feed available to them at all times, and I am feeding scratch and peck grower. I have just started feeding them scrambled eggs, which they are ignoring. The only thing they really going nuts for is when I feed them fresh corn. They have plenty of grit, plenty of water. They are currently outside in their playpen.