What would be a good breed to keep as a dual purpose bird that is a good egg layer but would also be a good broiler? I would like a breed that would enable me to keep a few hens and a rooster that would provide me with offspring for meat as well as a few eggs. I have been told that Barnevelders are a good dual purpose bird as are Cornish Rocks and Delawares. Is this correct and are these breeds heat tolerant? Would they breed true?