When you say "dual-purpose" most people will assume you're planning to eat the birds. You're not going to find true dual-purpose birds that are at the top of the list for your number 1 and 2 criteria, because dual-purpose birds put energy towards making meat, not just eggs.I think I asked the wrong question. What would be a good bird for someone trying to move towards a more self-sufficient lifestyle. I have read suggestions that say buy a smaller bird that produces a lot of eggs and use the eggs as your main source of protein. Here are my wants for the breed-
1. High egg producer.
2. Makes a lot of eggs for the feed consumed.
3. Can forage for a large portion of its diet.
4. I live in the Midwest so also able to survive in an area with 4 seasons.(cold winters hot summers)