Hi - my daughter just called and said they cracked one of the duck eggs and the white was "green" --had a "grassy" odor. All the eggs I have given them were very fresh -- less than a week--- Any ideas? I got a bunch of lettuce from Costco and chopped it for them last week, but nothing else is different that I can think of. The ducks are Runners, Ancona and Saxony -- no idea whose egg it was.
