haha Weird right? I have 11 ducks. They are all 26 and 29 weeks old. I only get 5 eggs a day. Never 6. Today I kept them locked up nearly all day to see if any were a layin' elsewhere in the yard. No other eggs showed up in the coop. I would like to identify which duck is laying. So at night I would like to put something on the vent of one or two females and see if those 2 are laying. So I can rule out the layers and non layers. It would take me several days to accomplish this. Each duck is named but we have almost 2 of each breed so it's really varied and the eggs are all a cream color. So is there anything safe that I could put on their vents so that it would mark the egg identifying which ducks were laying? I cannot think of how else to figure out who my non-layers are. Any other ideas that you can think? I cannot sit out there for hours watching to see who lays what...there has to be some way. Thanks!