SU1161054A1 - Arrangement for scaring birds - Google Patents

Abstract

A BIRD-DISPENSING DEVICE, containing a support and an optical repellent mounted on a support by means of a flexible connection, from the fact that, in order to increase the effectiveness of scaring, the optical repellent is filled in the form of a sphere with blades, the surface of which is covered with mirror plates. 74,

Description

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G The invention relates to deterring birds from the territory of gardens, vineyards, fields of cereal crops J as well as airfields. A device for repelling birds INN is known, comprising a pole and optical support mounted on the pole by means of a flexible link 03. A disadvantage of the known device is the low repellency. Since the bird-generated optical irritant of this device — a beam of light — does not have sufficient brightness, the direction of reflection of the beam from the surface does not change often enough. As a result, birds have a rapid n | and release to the repellent. The purpose of the invention is to increase the effectiveness of bird scaring. This goal is achieved by the fact that the optical repellent is made in the form of a sphere with blades, the surface of which is covered with mirror plates. The drawing shows the device a General view. A device for repelling birds contains an optical repellent made in the form of sphere 1, on the surface of which mirror plates 2 are glued, for example, fragments of mirrors. Sphere 1 can be made, for example, from foam or rubber. Blades 3, made of a material that reflects light well, for example, j made of foil or polyester film, and attachment unit 4 are attached to sphere 1. In node 4, a flexible connection 5 is fixed, for example a cable, fishing line or rubber cord connected to support 6. The device operates as follows. The support 6 is fixed on a pole or a tree branch, so that sphere 1 is located at a distance of 0.3-0.7 m from the surface of protected crops. If grapes & other crops and other strip cultures are protected, it is sufficient to place optical repellents on top of the culture. When protecting fruit trees, optical repellents should be placed at the same distance both above and below the crowns. When repelling birds from the runways of airfields, optical repellents are installed on the territory adjacent to the runway in the flight safety zone. Due to the presence of the blades 3, the spheres 1 of the optical repellents rotate in different directions on the flexible link 5 under the influence of weak air flows. When sunlight or a beam comes in from any light source, for example, from a searchlight, the beam is repeatedly reflected from. mirror plates 2 on different spheres 1, creates powerful light fluxes of unequal brightness and constantly changing direction, which prevents birds from getting used to such repellents. The proposed device is environmentally friendly. Its use allows you to increase the harvest of fruit and the year, as well as other crops. The annual economic effect when used in gardens is about 400 rubles. for each protected ha.

Claims (1)

A device for repelling birds, containing a support and an optical ’repellent fixed to the support by means of a flexible connection, characterized in that, in order to increase the efficiency of repelling, the optical repellent is made in the form of a sphere equipped with blades, the surface of which is covered with mirror plates. -S.U (ID 161054