That is pushing her body limits for 6 weeks. I would do the other breeds with your next broody, you'll prolly have another go broody before summer. Also, really research on the Wyandotte. I would avoid hatchery stock if you want this breed for looks. Breeders will have better looking and better temperament too( I have read they can be b**chy).Oh...hmm. One thing I didn't think about was that by Feb 26th when I could get the 2nd group of chicks, she will already have been sitting for almost 6 weeks. I don't think I should put my own selfish ambitions of having 2 more breeds of chicks before her health. That's an awful long time for her to be in the nestI think I'll scrap this idea and just try next year for a SLW and SS.