JPH04229124A - Method for preventing bird injury of outdoor facility - Google Patents

Abstract

PURPOSE:To prevent accidents and contamination troubles caused by the flying or nesting of birds by placing a threatening material at a place to be kept from the nesting of bird and placing materials suitable for nesting near the threatening material. CONSTITUTION:A threatening material 10a placed on a board and attached with glass beads 12 is placed at a place to be kept from the nesting of bird using a fixing tool 13 of a fixing tool cover 11. A material suitable for nesting is placed at a place having relatively low troubles with nesting and near the threatening material to induce a bird to the place suitable for nesting.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention is applicable to power distribution poles, railway overhead line poles,
Concerning methods to prevent accidents and pollution caused by flying and nesting of medium-sized birds such as crows, pigeons, and magpies into station premises.

0002

[Prior Art] Conventionally, small birds such as sparrows and starlings have been used to prevent damage to agricultural crops by small birds such as sparrows and starlings, in order to prevent accidents and pollution caused by medium-sized birds flying in and nesting on power distribution poles, railway overhead wire poles, and station premises. It is known that reflective tapes and eyeball balloons are used to prevent this, and that propellers are used to drive away small birds and moles at the same time.
It is disclosed in Japanese Unexamined Patent Publication No. 986 and Japanese Utility Model Application No. 1-3582. In addition, to prevent crows from nesting on power transmission towers,
Methods using windmills are described in Japanese Utility Model Application No. 58-100585 and Japanese Utility Model Application No. 58-122976, and methods using propellers are described in Japanese Utility Model Application No. 61-193783 and Japanese Utility Model Application No. 1-166424. Disclosed. However, these conventional nesting prevention methods merely prevent birds from nesting, and although they may have short-term effects, they are insufficient in terms of medium- to long-term effects. In other words, non-hunted birds and protected birds such as crows, pigeons, and magpies continue to proliferate, but on the other hand, these birds build nests in a variety of locations to share their habitat with humans. The reality is that even if there is a small amount of threatening material, they have no choice but to nest nearby due to the need to lay eggs and raise chicks, and eventually the effectiveness of the threatening material wears off.

0003

[Problem to be Solved by the Invention] Such repeated use of new threatening materials results in repeated production, installation, and removal of the materials, which requires a great deal of expense and effort, and is wasteful.

[0004] Therefore, the technical object of the present invention is to suppress the habituation of birds to threatening materials, induce them to nest in suitable locations, and improve the sustainability of the bird damage prevention effect.

[0005]

[Means for Solving the Problems] In order to solve the above-mentioned technical problems, the present invention is based on the idea of coexistence with birds, instead of the conventional idea of intimidating and driving away birds. This method provides a two-pronged method to prevent bird damage by driving them out of inconvenient nesting locations and guiding them to nesting locations where there is no hindrance.The threat materials include the appearance of natural enemies and large birds competing for nesting locations. A flat model that resembles a bird is used, and the nest-inducing material is designed to be suitable for the nesting form of the target bird, with a structure, shape, and size that makes it easy to nest and prevents nest materials from falling. , located near inconvenient locations for nesting, where there is relatively no hindrance to nesting;
It consists of installing the right material in the right place.

[0006]

[Operation] By the above means, the threatening material intimidates the birds that are looking for a nesting place to lay eggs and raise chicks, and the nest-inducing material in the vicinity provides a nesting place. The threat material of the present invention has a flat plate shape that can change direction freely, so it appears and disappears depending on where and when the bird looks at it, so it is difficult to get used to it and is expected to have a long-lasting effect. can. Therefore, people do not force themselves to approach the place where the threatening materials are installed, and the sustainability of the threatening effect is improved.

[0007]

Embodiments FIGS. 1 to 4 show examples of the threatening material of the present invention, but the threatening material of the present invention is not limited to this example. Figure 1 is a plan view of intimidation material in the shape of an eagle, Figure 2 is a cat, and Figure 3 is a crow.
FIG. Plate-shaped intimidation material main bodies 10a, 10b, 10
c and the mounting bracket cover 11 are integrally molded from plastic, and a central portion 16a within the mounting bracket cover 11 has a protrusion so as to fit with the central portion 16b of the mounting bracket. A mounting bracket 13 is contained in the mounting bracket cover 11 with a bearing ball 15 interposed therebetween. The mounting bracket 13 has a slightly concave surface on the bearing ball 15 side, and a central portion 16.
b is notched so as to fit with the center part 16a inside the mounting bracket cover 11 so as not to come off, and the outer part is threaded. A fixing nut 14 is attached to the screw. The direction of the menacing material main body 10 can be changed around the attachment fitting 13 depending on the direction of the wind. FIG. 5 is a BB sectional view common to FIGS. 1 to 3. Glass beads 12 are attached to the plate-like intimidation material bodies 10a, 10b, and 10c as eyes. 6 to 9 show examples of the nest-inducing material of the present invention. FIG. 6 is a perspective view of a plastic basket 20 as the nest-inducing material, and FIG. 7 is a perspective view of a metal fitting 21 for attaching the nest-inducing material. It is. Install the mounting bracket 21 on the arm end of the utility pole, and then attach the basket 20
is set on the mounting bracket 21 before the nest-building season, and removed after the chicks are raised. The waste nest material in the basket 20 can be incinerated either together with the basket 20 or removed from the basket 20. FIG. 8 is a partially enlarged view of the plastic basket 20, FIG.
2 is a partially enlarged sectional view of a plastic basket 20. FIG. Basket 2
0 is an example of a mesh state, which is a rhombus shape that makes it easy for birds to insert nest material branches and prevents the inserted branches from coming off.It has a triangular cross section, but the nest material is limited to this shape. Rather, the mesh shape can be any shape other than a rhombus, such as a triangle, square, trapezoid, or half-moon.

[0008]

[Test Example] ■ This is a test example in the southern part of Saga City, Saga Prefecture, where there is a poultry farm and a high density of magpies. Figure 10 is a diagram of the power distribution line at the test site, and Table 1 is a list of nesting results in the previous year, material installation status, and nesting status at the end of the test. Magpies, which tend to nest on utility poles with complex installations, were able to be guided to simple utility poles where they were relatively unobstructed.

[0009]

[Table 1]

[0010] This is a test example in the western part of Kawazoe-cho, Saga Prefecture, where there is a high density of magpies. Figure 11 is a diagram of the power distribution line at the test site, and Table 2 is a list of the nesting results in the previous year, the installation status of materials, and the nesting status at the end of the test. In this test, we were able to guide the magpie to a simple telephone pole with relatively no problems.

[0011]

[Table 2]

0012

[Comparative example] ■ This is a comparative example in the southern part of Saga City, Saga Prefecture, where there is a high density of magpies. Figure 12 is a diagram of the power distribution line at the test site, and Table 3 is a list of nesting results in the previous year, material installation status, and nesting status at the end of the test.

[0013] As is clear from these results, if you only attach threatening materials without creating suitable conditions for nesting in the vicinity, birds will become accustomed to the threatening materials, and eventually
It turns out that they ignore the threatening materials and nest.

[0014]

[Table 3]

[0015] This is a comparative example in the western part of Kawazoe Town, Saga Prefecture, where there is a high density of magpies. Figure 13 is a diagram of the power distribution line at the test site, and Table 4 is a list of the nesting results in the previous year, the installation status of materials, and the nesting status at the end of the test.

[0016]

[Table 4]

[0017] The magpies in this field test tend to prefer to build their nests on utility poles with complicated installations such as high-voltage and low-voltage distribution lines, distribution lines, transformers, etc.; It is also a utility pole that is in trouble. In contrast to the comparative example in which only threatening materials were installed on inconvenient poles, the test example in which nest-inducing materials were installed on relatively unobstructed utility poles adjacent to the installation of threatening materials shows that it is possible to effectively induce nesting. .

[0018]

Effects of the Invention The present invention has the following unique effects.

[0019] By using the nest-inducing material in combination, the birds will not be forced to approach the threatening material, and the effect of the threatening material will last for a long time.

[0020] ■ Since the threat material has a flat plate shape that can freely change direction depending on the direction of the wind, it has the characteristic of being visible or invisible depending on where and when it is viewed from the viewpoint of effectiveness, and also depending on the installation location. Because there are many high-voltage lines that cannot be directly installed on power distribution poles or railway overhead line poles that are exposed to the wind, strength and weight reduction are required.In this respect, too, strength is maintained because it is less susceptible to wind pressure. At the same time, it can also be made lighter.

[0021] ■ There are many power distribution accidents caused by falling nest materials, but in the case of nest-inducing materials, the structure and shape make it difficult for nest materials to fall, and the nest can be placed in a place where there will be no problem even if the nest materials fall. You can make it work.

[0022] Crows and magpies build their nests by combining twigs, but once the chicks have been raised, the nests collapse due to wind and rain, which can cause accidents, so they must be removed. However, because these nests are tangled with nesting material,
It is not possible to remove the nest in its original state, and the nesting material must be dismantled at a high location. At that time, many mites and the like are scattered in the abandoned nest, making it difficult and dangerous to remove nests at high places, as well as hygienic problems. On the other hand,
In the case of a discarded nest in the nest-inducing material of the present invention, the nest-removal work is easy because the entire material can be removed, and the work can be simplified as well as improving hygiene.

[Brief explanation of the drawing]

FIG. 1 is a plan view of an example of a threatening material used for bird damage prevention measures of the present invention.

FIG. 2 is a plan view of an example of a threatening material used for bird damage prevention measures of the present invention.

FIG. 3 is a plan view of an example of a threatening material used for bird damage prevention measures of the present invention.

FIG. 4 is a common cross-sectional view of the mounting fitting 13 portion of FIGS. 1 to 3. FIG.

FIG. 5 is a common sectional view showing a method of attaching the glass beads as the centerpieces of FIGS. 1 to 3;

FIG. 6 is a perspective view of a cage 20 as an example of nest-inducing material.

7 is a perspective view of the mounting bracket 21 of the basket shown in FIG. 6. FIG.

FIG. 8 is a partially enlarged view of a plastic cage 20 as a nest-inducing material.

FIG. 9 is a partially enlarged sectional view of a plastic cage 20 as a nest-inducing material.

FIG. 10 is a diagram showing the positional relationship of roads and utility poles and power distribution lines at the location where the field test was conducted.

FIG. 11 is a diagram showing the positional relationship of roads and utility poles and power distribution lines at the location where the field test was conducted.

FIG. 12 is a diagram showing the positional relationship of roads and utility poles and power distribution lines at the location where the field test was conducted.

FIG. 13 is a diagram of the positional relationship of roads and utility poles and power distribution lines at the location where the field test was conducted.

[Explanation of symbols]

10 Plate-shaped intimidation material body 10a Plate-shaped intimidation material main body (eagle) 10b Plate-shaped intimidation material main body (cat) 10a Plate-shaped intimidation material main body (crow) 11 Mounting bracket cover 12 Glass bead 13 Mounting bracket 14 Nut 15 Bearing ball 16a Cover Internal protrusion 16b Mounting bracket notch 20 Plastic cage

Claims (5)

[Claims] [Claim 1] Materials that intimidate birds are installed in places where there is a problem with birds building nests, and materials that are easy to build nests are installed in nearby places where there is relatively no problem. A method of preventing damage caused by nesting birds by guiding them. [Claim 2] The material used to intimidate birds is a model of a bird of prey or a bird's natural enemy, or a model of a large bird that competes with the target bird for a nesting site. How to prevent bird damage. [Claim 3] Materials that are easy to use for nest building include boxes, baskets, nets, and other shapes that make it difficult for nest materials to fall, and shapes that allow the nest to be easily removed after leaving the nest. The method for preventing bird damage according to claim 1, characterized in that: 4. The bird damage prevention method according to claim 2, wherein the model for threatening birds has a flat plate shape and is integrated with a mounting device that can freely change its direction depending on the direction of the wind. [Claim 5] A basket or net that is a material that is easy to build a nest, has polygonal mesh, has a cross section with acute corners, and has a structure in which the nest material is easily caught and difficult to slip off. The method for preventing bird damage according to claim 3.