I plan on making an entire fanon side for erfworld, but here is just the first unit type I drew up. They are called Duckys.
And here are some possible stats:
Special: Flight, swimming (if that is a valid term)
I imagined them being weaker than orlys, but able to count as water units.
Edit: Oops, I forgot to draw in the sound effects. They are supposed to be saying squeak, quack, and squack.