1. Can you breed for type of egg? Some of my quail lay bluish or olive eggs. If I hatch those will I get quail that lay that color or is it luck of the draw? 2. How often do you need new blood to come in? 3. Is there anything I can watch for that signals genetics for double yolkers? I love them but it's killed a couple gals so not really worth it. 4. Any other cool breeding tips?