The disclosure presents systems, methods and computer program products relating to a wind farm. The presence of flying animals, such as birds, bats, and insects may be determined. Deterrence elements such as acoustic and/or visual deterrence elements may be activated in an attempt to deter animals whose presence was determined, and/or independently of a determination of animal presence. The rotation of the blades of one or more wind turbines may be slowed down and/or halted if collision is probable, in order to prevent flying animal casualties. Energy from deterrence elements may produce a predetermined tempo-spatial pattern of lights and/or sounds.