Duck has build a nest, should i remove eggs? (No ducklings wanted)

[DuckyDonna]

How do you offer them the oyster-shells? in a separate bowl/feeder or mixing it into their food?

I took a smallish clear plastic coke bottle and cut it in 1/2. Drilled a few small holes in the bottom so it can drain and wired it right to my fence. I'll occasionally take a knife and stir it up a bit and gently run some water through it to clean it up a bit but it's working great. They just go to it when they want to.

 

[TheGooseLord]

most eggs dont hatch broody and indian runners lose interest quickly, but if some hatch ill take them!