I have two Red Stars/Cin. Queens and they are almost 19 weeks. They are about 15 inches tall. They have a huge yard, lots of space to run all day, access to lots of garden and yard greens, bugs, etc.. They like some scratch in the morning and will nibble on the flock raiser feed. They seem very content and healthy. My friend has 3 from the same bin at the feed store. Hers live in her house with her. They are HUGE. They are about 24 inches tall and huge and heavy. She says she's going through a 50 pound bag of feed every two weeks and pounds of vegies. Hers are on layer feed already. Could there be a difference in the birds because of where they live and what food is available? I'm kind of concerned. I didn't move mine from the Purina Start and Grow until just a few weeks ago. And, like I said they just nibble on the food. I haven't refilled the food bin in a week or so because my birds just barely touch it. Are my birds ok? How big would you say a Red Star/Cin. Queen would be at this point? How big are birds before they can lay an egg?