They are terrible
I would walk near them and they would stand up on back legs ready to attack
I was worried they would find their way to the ducks or even my cats
For the ant issue I used DE food grade
Took care of the nest
Yoy can cover it with a tarp and rocks so ducks don’t get to it if need be. Mine was away from where my ducks go
I had those big fire ants
Red and black and bite hard
My regular little ants the ducks have cleaned up themselves