I have a couple different questions about ducks. This is my first year with them and I have 2 Khaki Campbell drakes and 1 crested blue swedish duck and 1 blue swedish/khaki campbell duck. They are both laying everyday and I am getting one white/cream egg and one green/blue egg. I thought that I had read somewhere that the blue swedish would lay the green/blue egg and the Khaki cross would lay the cream colored egg. Hubby got me a dozen fertile blue swedish eggs and a new incubator for Valentine's day. When I got the fertile eggs, they are all cream colored. Have I been wrong for the last month on who is laying what egg? Also, we are loving the eggs. Except, the shells are so hard to crack. I end up with shell in it everytime. They free range all day and have layer pellets free choice. I don't give extra calcium so is there something that I should be doing to make it easier to crack the shells open?