An anchor for use with a buoyant decoy used in hunting has a hollow anchor housing configured for detachable engagement with the buoyant decoy, the hollow housing having an anchor head portion, a ballasted and ballastible anchor shaft portion and a hook portion unitary connected to the anchor shaft portion. A reel assembly with a spool of an anchor line is positioned in the anchor housing. The spool is rotated by a detachable crank handle to rewind the anchor line into the housing. A spring-operated release plunger is positioned within a bore formed in the head portion. When the plunger is depressed, the anchor line can be extended and/or retrieved. A hook on a free end of the anchor line allows detachable securing of the anchor housing to the keel of the decoy.