I too have Buff Orpington Hens that won't sit. I have heard what great brooders they are but mine have done nothing for me and that is the main reason I got them. I have two OE game hens that my dad gave me. One has hatched a brood and the other has hatched off two already this year. I had three Cochin hens for about six weeks and were hoping they would brood but they never did so I traded them. I may look at getting some silkies or Brahmas. Monty