The 2-dimensional nature of silhouettes may seem silly at first glance, but from an aerial perspective, these cutout imposters can offer the hunter massive numbers of decoys with fast setup time, less expense and easy storage. Good silhouettes have photo-realistic finishes that you can use close to your hide to keep birds looking at the birds instead of the blind.  Additionally, silhouettes will disappear and reappear as the geese circle overhead, not allowing all those prying eyes too good of a look to spot the ruse. Some hunters swear by all silhouette spreads, but many veterans of the winter wheat fields will use them in combination with other decoy types to boost numbers while letting a handful of full bodies do the heavy lifting near your landing zone.