My orps took 9+ mo for their 1st egg. By then they were large, but not 8lbs. I think it takes over a year to get that big. When I look back at pics, their combs & wattles were so small at 9 mo. I know they "Look" so much more mature now. Mine have also fluffed out & look more round as they aged. Even my CCL didn't have a big comb on her 1st bday. It just kind of grew since then.
The lavs in the pic above have very light legs & beaks - From the mottled???. All lavs that I have seen have dark, slate gray legs. I like their round look.
I wanted to keep a lav roo, but my DD fell in love with a blk/lav split. We have 2 of those, and one will be leaving soon. PM me for pics if you want him. I promised DH no more chicks until 2016.
Of course Cookie didn't make that promise. Her eggs will be hatching soon. LOL Honestly, I didn't put her up to it. As many know, a broody hen has a mind of her own. I simply didn't work very hard to break her broodiness. I kicked her out of the nest for a few days, but once she started stealing everyone's eggs & screaming at top volume, I just left her alone.