This indoor pest repellent device (10) is provided with: a light source (11); a light concentrating part (the first light concentrating part (13)) which concentrates a portion of diffused light (LS) emitted from the light source (11); and a first displacement unit (the rotation mechanism (14)) which changes the relative position of the first light concentrating part (13) relative to the light source (11), and which displaces the irradiation region (the light irradiation region (SP1)) of the light from the first light concentrating part (13), said irradiation region being formed on a floor. The light concentrating part is provided with a convex lens.

An automated system for mitigating risk from a wind turbine includes a plurality of optical imaging sensors. A controller receives and analyzes images from the optical imaging sensors to automatically send a signal to curtail operation of the wind turbine to a predetermined risk mitigating level when the controller determines from images received from the optical imaging sensors that an airborne animal is at risk from the wind turbine.

An automated system for mitigating risk from a wind turbine includes a plurality of optical imaging sensors. A controller receives and analyzes images from the optical imaging sensors to automatically send a signal to curtail operation of the wind turbine to a predetermined risk mitigating level when the controller determines from images received from the optical imaging sensors that an airborne animal is at risk from the wind turbine.

A system for detecting flying animals, the system comprising: a detection module configured to detect flying animals; a local processing module associated with the detection module and configured to remove background noise from data gathered by the detection module; an analysis module configured to receive data from the local processing module and process said data to determine presence of flying animals and classify such flying animals by species; and a deterrent configured to repel one or more species of flying animal based on the classification of detected flying animals.

An electronic owl for scaring away pigeons and other unwanted wildlife from homes or other buildings. The electronic owl includes a housing having a body and a rotating head attached thereto. The body of the rotating electronic owl is attached to a weighted base which allows a user to add or subtract the amount and type of material put into the base. The housing includes a variety of motion sensors therein configured to detect birds or other unwanted animals. The electronic owl utilizes motion, lights, and sound to scare away pest animals from the designated area.

An electronic owl for scaring away pigeons and other unwanted wildlife from homes or other buildings. The electronic owl includes a housing having a body and a rotating head attached thereto. The body of the rotating electronic owl is attached to a weighted base which allows a user to add or subtract the amount and type of material put into the base. The housing includes a variety of motion sensors therein configured to detect birds or other unwanted animals. The electronic owl utilizes motion, lights, and sound to scare away pest animals from the designated area.

The invention concerns an apparatus and a method for deterring birds, comprising a frame fixedly disposed on a structure; a laser light generator connected with the frame, including a laser light source for generating a laser light beam; a supply circuit for supplying the laser light source; driving means connected with the laser light generator, for having at least a part of the laser light generator move; and a control element for controlling the laser light source and the drivable part of the laser light generator, wherein the driving means are arranged for causing a movement to be executed of at least a drivable part of the laser light generator. Thus, an apparatus and a method are obtained having a greater effect in deterring birds.

The invention concerns an apparatus and a method for deterring birds, comprising a frame fixedly disposed on a structure; a laser light generator connected with the frame, including a laser light source for generating a laser light beam; a supply circuit for supplying the laser light source; driving means connected with the laser light generator, for having at least a part of the laser light generator move; and a control element for controlling the laser light source and the drivable part of the laser light generator, wherein the driving means are arranged for causing a movement to be executed of at least a drivable part of the laser light generator. Thus, an apparatus and a method are obtained having a greater effect in deterring birds.

The present disclosure provides a lighting device for reducing bird strikes and a method for reducing bird strikes in a wind farm. The lighting device includes an illuminator, and the illuminator emits red light with a wavelength of 620-750 mm. In the present disclosure, the red light with a wavelength of 620-750 mm is used as a light source of the lighting device to reduce the attraction to birds; therefore, strikes of birds on the position of the lighting device can be reduced, overcoming a longstanding technical prejudice that people have generally accepted that blue light is used as a light source for reducing bird strikes because the red light is easy to attract birds, which are too sensitive to the blue light to be attracted easily.

The present disclosure provides a lighting device for reducing bird strikes and a method for reducing bird strikes in a wind farm. The lighting device includes an illuminator, and the illuminator emits red light with a wavelength of 620-750 mm. In the present disclosure, the red light with a wavelength of 620-750 mm is used as a light source of the lighting device to reduce the attraction to birds; therefore, strikes of birds on the position of the lighting device can be reduced, overcoming a longstanding technical prejudice that people have generally accepted that blue light is used as a light source for reducing bird strikes because the red light is easy to attract birds, which are too sensitive to the blue light to be attracted easily.