They are Cayuga/Call Duck Hybrids Has anyone heard of this hybrid because I have a few questions... 1. What color will these ducklings most likely look like? 2. At day 20 all 6 eggs were opaque except for their air sac...are they alive? 3. Will they be mule ducks (Unable to reproduce)? 4. When should I expect them? (They brooder is all hooked up and ready!) 5. Is my humidity good at 63 degrees Fahrenheit? 6. How long should they dry off for?