Nesting boxes?

[Snowflower]

I was told I needed to build nesting boxes for ducks at ground level. Then another person said no to individual boxes, that they would just lay their eggs all over a general area anyway. So, I don't know what I need. Help?

 

[DUCKOBSESSED]

I don't use boxes here. They lay were they want, but usually make one or two communal nest every morning.