Bird B Gone Solar Bird Chase Super Sonic™ is a programmable outdoor sound deterrent used to deter birds from large open spaces. Birds hear on the same level of humans and do not hear ultrasonic noises. Solar Bird Chase Super Sonic™ features actual distress and predator calls of over 24 types of birds. These sounds are broadcast in two minute in ten minute intervals to alert birds of danger. When birds hear these calls, their natural instinct is to flee the area. Solar Bird Chase Super Sonic™ is ideal for use in large open spaces where there is no access to a power source. Solar panels charge and store energy to keep the system operating during inclement weather. A built-in light sensor automatically powers down the deterrent when the sun goes down. Solar Bird Chase Super Sonic™ includes a general setting to deter birds, and can also be specifically programmed to deter pigeons, crows, geese, seagulls, starlings, woodpeckers, grackles, geese and more! Unit offers coverage up to one acre.