Congrats on the new stock, Orange Ribbon! So happy for you.
My Mt. Healthy SS are very close to 6 months now. The pullets have me encouraged and hopeful. In form, most of them have filled out nicely - broad flat backs, deep chests and curvy wide hips. A lot of pinched tails, but I do have a few that are a little more open. Prior to Irene, I locked the whole flock in the barn as my chicken tractors tend to behave like kites in high winds. When I put them all back on pasture, I did so slowly, weighing each one and checking a few other things. The average weight at 23 weeks was 4.14 lbs for the pullets, and I had 6 girls at 5 lbs or better. A quarter of them are laying, mostly small sized eggs (less than 43g). One lays a speckled egg. Is that a DQ offense?
My McMurrary SS are 16 weeks and though I haven't weighed them, I think they are going to be a little larger than the Mt. Healthy, but the cockerels have a lot of white. The ones from Sandhill are a 7 week old mystery. What dark feathers they have are a much lighter brown than either of the earlier groups, but mostly they are VERY white. Definitely smarter than the earlier groups, though. It will be interesting to see how they all grow up.
Now having said that, I finally read the book that Bob has been recommending - The Call of the Hen. Wow and OMG! If you haven't read this little gem, do so! I wish I would have had it 3 or 4 months ago. I could have saved myself a lot of feed costs and probably picked better roos. So as time permits over the next couple of weeks, I'll be do a lot of pullet groping. One thing I do not understand is what Hogan means by the thickness of the pelvic bone. Is this measured from the front to the back, the top to the bottom, or is it the length the bone extends from the ischium?
Here is a picture of 55. Even though she's got the obvious white primary and her comb is uneven, this is the little gal that draws my eye time and time again, something about the shape of her that is very different. She's on the go in this pic. Her tail is normally not so high. Friendly little thing, too. (I apologize for the small pic size. My new cell phone isn't all it's cracked up to be.)