A power module gear coupled to a wind operated fowl hunting decoy, which is normally wind powered, such that the decoys wings will rotate during periods of no wind. The power module has a body that internally carries one or more batteries, controlled by a switch to operate a small motor in the head of the module on the shaft of which is a gear that engages a gear disposed on the decoys wing shaft Gear alignment means and module mounting means are also provided. The module will also power wind operated garden ornaments by suitable mounting adaptation.