I hatched 2 call ducks back on March 1. I had an "odd" egg on the yard this morning. Creamy white and fairly large. The runner ducks lay tinted eggs. Is it possible an 11 week old bantam duck laid an egg????? I haven't seen them mate although she had a nice flight halfway across the pond this week **lol** its a 1 acre pond so it was quite impressive I must say. And of course she was very proud and quacked LOUDLY at her feat. This pic is about a month old. The male has a 95% green head now.