"Bigg Butt Girls".... Your birds are very pretty! BLRWs are some of my absolute favorite birds aesthetically, but GLW come in at a close second. There's just something about those feathering patters and color combinations that I adore.
I hope I didn't come across as snarky with my comment. I'm so sorry if it seemed that way. I totally recognize that Wyandotts and NNs are completely different breeds, and I was sort of thinking-typing my thoughts as they came into my head. (Sorry....writing is another of my hobbies and this habit sometimes gets the better of me.) This is actually the first time I've gotten any kind of statistics on Wyandotts that I could really sink my teeth into, which I've been dying to do. I'm actually very grateful for the info since I'm always toying with the idea of adding different birds to my gene pool.
I do give all of my chicks free access to food 24/7 for the first four weeks of their life while their feathers are coming in and they're under the heat lamp. Right around 5 weeks I take the feed away at night while I begin weaning them off the heat lamp, but they stay on 20% protein with supplements of sprouted greens until they're about 8-9 weeks old, which is when I typically see a decline in their growth rates. Since my goal is to use the NNs as meat birds....yeah...growing big birds is definitely a goal. I culled all but three of my original NN cockerels, and then culled one of those three after breeding him. These were my three biggest and fastest growing boys and my goal was rapid growth and impressive size (6-7 lbs) by 18 weeks.
That said, some of the girls I bred my boys to were actually part of my egg laying group, so I expect their progeny to be smaller, which they are. I'm hoping the pullets as good of layers as their mothers. From the sounds of it, your Wyandotts are probably better layers of bigger eggs than my NN girls. Most of my girls average 5 eggs per week ranging from 1.8 to 2.08 ounces each. They don't hold a candle to my primary laying flock of Australorps and Barred Rocks, but I'm pretty happy with them nonetheless.
The Bigg Butt Girls are in with Feyd for a very good reason: Feyd is like a living representation of the caricature of a rooster with a huge chest and itty-bitty hips and legs. No big surprise, I am hoping for chicks with his chest and their nice wide back ends. Feyd's four test breeding chicks all have his nice breast musculature, and his two daughters will go in with Spikey the single comb (shorter) round meaty medicine ball brother to Tiny.
No offense was taken, you just kind of deflated my bubble a bit, but now I can see why: different feeding style. Mine have set feeding times, and if they want a snack in between feedings they have to catch bugs. It's not like there is a shortage of insect life here in Florida! These are also the first set of data points on Wyandottes for me as well ... I didn't track that in the P generation. I also have not been weighing eggs ... there's an idea. I think I'll weigh the ones for hatching before I set them.