Conceived as a scarecrow, albeit in owl and not human form, Hootie changes randomly between pre-recorded, real owl calls, flapping its wing tips and turning its head which holds a 10mW laser beam. Birds hate the laser beam. Watch the video, which shows birds (actually flying rats) offered yummy food and yet even the most brazen of them scatters when the head turns and they are exposed to his imposing laser beam. Its main use is to keep other birds from defecating on garden furniture (what my wife originally wanted it for) around homes or more significantly, preventing them from pooping on PV solar panels thereby shading them from the sun and reducing the energy that they produce. I keep seeing other applications like keeping seagulls off of boats.