Early season ducks Mojo Works good.
Put it away in the late season. They have been there done that.
Geese Hate it. so have a remote to turn it off if there is a chance geese could come in.
On a side note:
DOVE MOJO is nasty... They just can't help themselves... I made a dove tree out of rebar last year and mounted the MOJO to the top of it with about 4-5 clip on decoys on the branches... it worked wonders... I also hear tell that the crow MOJO works very well.