I have 7 Pekins. 6 are 4 years old now and one that we got from a friend is 8. We had our female Rouen, also 4, die a month or so ago. She passed in her sleep while sitting on a nest. I was wondering if I should expect more of my ducks to die soon. 4 years seems a little young to me. How long do Pekins and pekin crosses live? Do Swedes and buffs live longer?