what is the best way to collect poop when free range?

[microsat]

if your ducks are in free range in your yards, what could be the best way to clean the yards off poops?
Is there any vacuum designed for this?

Thanks.

 

[Amastacia]

wait for a good rain to wash it away. at least with my chickens, i don't bother cleaning it up. the nitrogen in it is great for the lawn, and cleaning it up would be nearly impossible i would think.