The sound of a mobbing flock of crows is hard for these naturally social birds to resist. This realistic decoy captures the illusion 100%. It plays a continuous, 60-second loop of frantic crow calls from a water-resistant speaker. It even has a 1-1/2-minute delay to allow for hunter setup after switching the unit on. Flocked body for a final touch of crow-finishing realism. Includes decoy-stowable mounting stake. Operates on four AA batteries (not included).