Bird?B?Gone Mist is a humane product that releases a fine mist in the air to deter pest birds from open spaces. The unit distributes methyl anthranilate, a grape extract used for flavoring grape soda and candies, that irritates birds' trigeminal nerve and mucous membranes through entry in the eyes, nose, or mouth. Birds do not like the sensation and will take flight from the treated area. From the control unit, users can attach up to 64 misting "drop" units, controlling each individually. Each drop station covers about 6,000 to 8,000 sq. ft. Bird?B?Gone. www.birdbgone.com.