Bird trap and bird trapping method using bird trap

Abstract

To provide a bird trap capable of effectively trapping birds, and a bird trapping method using the bird trap.SOLUTION: A bird trap 10 comprises a bottom plate part 20, a peripheral wall part 30 and a ceiling part 40, and traps and houses birds in a housing space surrounded by the bottom plate part 20, the peripheral wall part 30 and the ceiling part 40. The peripheral wall 30 includes an opening 32 through which birds can enter, formed on the front side thereof. The bird trap 10 includes an opening / closing part for opening / closing the opening 32. The opening / closing part includes a plurality of rod-like members 51 and a support part for rotationally supporting the upper end of each rod-like member 51. Each rod-like member 51 is inclined from the opening 32 in the direction toward the housing space with a vertical direction used as a base, and the lower end thereof comes into contact with the bottom plate part 20, so as to restrict turning thereof from the housing space in the direction toward the opening 32.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present disclosure relates to a bird trap and a method of trapping birds using the bird trap. [Background technology]

[0002] 2. Description of the Related Art As described in Patent Document 1, a bird trap for capturing harmful birds such as pigeons has been known. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Utility Model Registration No. 3188488 Summary of the Invention [Problem to be solved by the invention]

[0004] There is still room for improvement in techniques for effectively capturing birds.

[0005] A primary object of the present disclosure is to provide a bird trap that can effectively trap birds, and a bird trap method using the bird trap. [Means for solving the problem]

[0006] The present disclosure relates to a base plate portion and A peripheral wall portion extending upward from the bottom plate portion; A ceiling portion that closes an upper side of the peripheral wall portion; Equipped with A bird trap that captures and stores birds in a storage space surrounded by the bottom plate portion, the peripheral wall portion, and the ceiling portion, The peripheral wall portion is formed with an opening through which birds can enter, An opening / closing unit that opens and closes the opening, The opening and closing portion is A plurality of rod-shaped members arranged side by side above the opening; a support portion that rotatably supports an upper side of each of the rod-shaped members; having Each of the rod-shaped members is allowed to rotate in a direction from the opening toward the accommodation space, Each rod-shaped member is inclined in the direction from the opening to the storage space with respect to the vertical direction, and its lower end abuts the bottom plate portion, thereby restricting rotation in the direction from the storage space to the opening.

[0007] Each rod-shaped member constituting the opening / closing section is inclined in a direction from the opening toward the storage space, which makes it easier for birds to rotate the rod-shaped members when they enter the storage space by rotating them, making it easier to guide the birds into the storage space.

[0008] When in the tilted state, the lower end of each rod-shaped member abuts against the bottom plate, which prevents birds housed in the housing space from trying to lift the lower end of the rod-shaped member with their beaks, thereby preventing the birds from escaping from the housing space to the outside.

[0009] The lower end of each rod-shaped member is in contact with the bottom plate, so that each rod-shaped member is inclined. The rod-shaped members can be inclined with a simple structure that utilizes the bottom plate and the weight of the rod-shaped members. As a result, the structure of the trap can be simplified, and the trap can be easily manufactured.

[0010] According to the present disclosure described above, the trap can be easily manufactured and birds can be effectively trapped in the trap's storage space. [Brief description of the drawings]

[0011] [Figure 1] FIG. [Diagram 2] Top view of the bird trap. [Diagram 3] Cross-sectional view taken along line 3-3 in Figure 2. [Figure 4] Cross-sectional view taken along line 4-4 in Figure 3. [Diagram 5]A diagram showing a pigeon landing on a feeder. [Figure 6] A diagram showing a pigeon approaching an opening. [Figure 7] A diagram showing the state in which a pigeon pushes up the opening and closing part and enters the storage space of the trap. [Figure 8] A diagram showing a pigeon captured in the storage space. [Figure 9] FIG. 13 is a perspective view of a bird trap according to another embodiment. [Figure 10] 13A and 13B are diagrams showing the configuration of a downward step between the bottom plate portion and the feeding platform according to another embodiment. [Figure 11] 13A and 13B are diagrams showing a configuration in which there is a downward slope between the bottom plate portion and the feeding platform according to another embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] Hereinafter, one embodiment of a bird trap according to the present disclosure will be described with reference to the drawings. The trap of this embodiment is for capturing and housing harmful birds, specifically pigeons (e.g., burrowing pigeons). The trap is installed, for example, on the balcony or roof of a building.

[0013] <About the birdcage itself> 1 and 2, the bird trap 10 includes, as elements constituting the birdcage body, a rectangular bottom plate 20, a peripheral wall 30 extending upward from the periphery of the bottom plate 20, and a ceiling 40 closing the upper end of the peripheral wall 30. The bottom plate 20 is made of a surface material on which bait can be placed. The bottom plate 20 is made of, for example, a synthetic resin (e.g., acrylic).

[0014] The bottom plate portion 20 has a rising wall portion 21 extending along the periphery of the bottom plate portion 20. The rising wall portion 21 can prevent food from scattering from the birdcage body to the outside. The peripheral wall portion 30 extends upward from the inside of the rising wall portion 21 in the bottom plate portion 20. The peripheral wall portion 30 and the ceiling portion 40 are made of wire and are latticed. Pigeons are captured and housed in the housing space surrounded by the bottom plate portion 20, the peripheral wall portion 30, and the ceiling portion 40. The birdcage body is configured to a size that can house up to 5 to 6, 7 to 9, or 10 to 15 pigeons in the housing space, for example. For convenience, a part of the ceiling portion 40 is omitted in FIG. 1, and the entire ceiling portion 40 is omitted in FIG. 2.

[0015] <Regarding the opening 32 and the opening / closing portion 50> Of the four peripheral walls 30, the front peripheral wall 31, which is the peripheral wall on the front side, is formed with an opening 32 for pigeons to enter the housing space. In this embodiment, the opening 32 is rectangular, and more specifically, has a rectangular shape with its longer sides extending horizontally. The opening 32 extends from the middle of the front peripheral wall 31 in the height direction to the upper surface 22 of the bottom plate 20. The opening 32 is large enough to allow adult birds to enter.

[0016] 1 to 3, the trap 10 includes an opening / closing unit 50 that opens and closes the opening 32. The opening / closing unit 50 is configured to be rotatable about an axis (hereinafter, referred to as a central axis of rotation) that extends laterally (specifically, for example, in the horizontal direction) along the upper end of the opening 32.

[0017] The opening / closing unit 50 includes a plurality of rod-shaped members 51 spaced apart from one another in the direction in which the rotation central axis extends, and a support unit 60 that supports the upper side (specifically, the upper end) of each rod-shaped member 51 rotatably about the rotation central axis. The support unit 60 includes a shaft member 61 extending along the rotation central axis, a fixing unit 62 that fixes the shaft member 61 to the birdcage body, and a cylindrical spacer 63.

[0018] The shaft member 61 is provided above the opening 32. The shaft member 61 has a circular cross section, and is disposed at a position a predetermined distance L1 away from the upper end of the opening 32 toward the storage space. The predetermined distance L1 is, for example, 1 to 5 cm, 2 to 4 cm, or 2 to 3 cm. Both ends of the shaft member 61 are fixed to the front peripheral wall portion 31 by fixing portions 62.

[0019] The rod-shaped member 51 is made of a wire, for example, a metal material (e.g., aluminum). As shown in Fig. 4, an insertion portion 52 through which the shaft member 61 is inserted is formed at the upper end of the rod-shaped member 51. The insertion portion 52 is formed by winding the wire and has an annular shape. A spacer 63 is inserted between adjacent insertion portions 52 in the shaft member 61. The spacer 63 is a member for maintaining a predetermined distance between the adjacent rod-shaped members 51 and for restricting movement of the upper end of each rod-shaped member 51 in the direction of the rotation center axis.

[0020] As shown in Fig. 4, each rod-shaped member 51 is inclined at a predetermined angle θ toward the inside of the storage space with respect to the up-down direction. When each rod-shaped member 51 is in the inclined state, the lower end of each rod-shaped member 51 abuts against the bottom plate portion 20 (specifically, the bottom portion 71 of the groove portion 70 described later). This allows the rod-shaped member 51 to perform an opening operation, which is a rotational operation in a direction from the opening portion 32 toward the storage space. On the other hand, the rod-shaped member 51 is restricted from performing a closing operation, which is a rotational operation in a direction from the storage space toward the opening portion 32.

[0021] The predetermined angle θ is an acute angle, and is an angle of 10 degrees or more. Since the rod-shaped members 51 are inclined, when a bird pushes the rod-shaped members 51 from the outside, the rod-shaped members 51 are easily opened. This makes it easier for the bird to enter the accommodation space of the birdcage body.

[0022] Since the lower end of the rod-shaped member 51 abuts against the bottom plate portion 20, it is difficult for birds housed in the housing space to lift up the lower end of the rod-shaped member 51. As a result, it is possible to inhibit birds from lifting the rod-shaped member 51 and escaping to the outside.

[0023] The weight of the rod-shaped member 51 causes the lower end of the rod-shaped member 51 to abut against the bottom plate portion 20. The inclined state of the rod-shaped member 51 can be maintained by a simple configuration utilizing the weight of the rod-shaped member 51 and the bottom plate portion 20. This allows the trap 10 to be simplified.

[0024] The lower end of the rod-shaped member 51 is bent to form an arc-shaped portion 53 that is convex downward. In the rod-shaped member 51, a straight portion 54 is formed between the arc-shaped portion 53 and the rod-shaped member 51. The arc portion of the arc-shaped portion 53 abuts against the bottom plate portion 20, thereby reducing the frictional force acting on the rod-shaped member 51 and allowing the rod-shaped member 51 to be opened smoothly. In addition, since the tip of the arc-shaped portion 53 faces obliquely upward, the tip is prevented from digging into the bottom plate portion 20 during the opening operation, allowing the rod-shaped member 51 to be opened smoothly.

[0025] The predetermined angle θ is, for example, an angle of 20 degrees to 70 degrees, preferably an angle of 30 degrees to 60 degrees, and more preferably an angle of 40 degrees to 50 degrees.

[0026] <Regarding the groove portion 70> The trap 10 has a groove 70 extending from the opening 32 toward the storage space. The groove 70 is provided in a portion of the bottom plate 20 facing each rod-shaped member 51. The groove 70 has a bottom 71 having a flat surface and a restricting wall 72, and has a U-shaped cross section. The bottom 71 has a rectangular plate shape and is provided on the upper surface 22 of the bottom plate 20. The arc-shaped portion 53 of the rod-shaped member 51 abuts against the bottom 71. The restricting wall 72 extends upward from both ends of the bottom 71 in the direction in which the rotation center axis extends. When the arc-shaped portion 53 of the rod-shaped member 51 abuts against the bottom 71 of the groove 70, the restricting wall 72 of the groove 70 restricts the movement of the rod-shaped member 51 in the direction in which the rotation center axis extends.

[0027] The grooves 70 are made of a material (e.g., synthetic resin or metal) that is more slippery than the bottom plate 20. This allows the rod members 51 to open more smoothly, making it easier for birds to enter the housing space. On the other hand, the top surface 22 of the bottom plate 20 is less slippery than the grooves 70. This makes it difficult for food placed on the bottom plate 20 to scatter. As a result, it is possible to prevent the rod members 51 from malfunctioning due to food getting caught in the grooves 70, for example.

[0028] In order to make it difficult for birds housed in the housing space to lift rod-shaped member 51 with their beaks, it is desirable to have a small vertical gap dimension H1 (see FIG. 4) between the tip of arc-shaped portion 53 of rod-shaped member 51 and bottom portion 71. Gap dimension H1 is, for example, 1 mm to 5 mm, 2 mm to 5 mm, 3 mm to 5 mm, or 2 mm to 4 mm.

[0029] The height position of the restricting wall portion 72 is higher than the height position of the tip of the arc-shaped portion 53 in a state in which the arc-shaped portion 53 abuts against the bottom portion 71. Also, the restricting wall portion 72 extends further from the opening 32 toward the storage space than the tip of the arc-shaped portion 53. This makes it possible to prevent birds housed in the storage space from trying to lift the tip of the rod-shaped member 51 with their beaks, and to suppress the occurrence of a situation in which pigeons escape from the storage space to the outside.

[0030] <Regarding the obstacle member 80 and the water supply device 85> 1 to 3, the trap 10 is provided with an obstacle member 80 for preventing pigeons from escaping to the outside from between the inclined rod-shaped member 51 and the front peripheral wall portion 31. The obstacle member 80 is provided on the upper surface 22 of the bottom plate portion 20 in an area surrounded by the rod-shaped members 51 and the peripheral wall portion 30 on both ends. In this embodiment, the obstacle member 80 is a needle-shaped member made of stainless steel.

[0031] The trap 10 is equipped with a water supply device 85. The water supply device 85 is placed on the bottom plate portion 20 in the storage space, and supplies drinking water to the pigeons stored in the storage space. The tank of the water supply device 85 stores an amount of water sufficient to supply water to the pigeons from the time the pigeons are captured in the storage space until the captured pigeons are retrieved.

[0032] In addition, an opening for recovering captured pigeons and an opening / closing part for opening and closing this opening may be provided in the peripheral wall part 30 or the ceiling part 40 other than the front peripheral wall part 31.

[0033] <About Feeder 90> The trap 10 includes a feeding tray 90. The feeding tray 90 is provided on the bottom plate 20 at a position outside the storage space with respect to the opening 32. The feeding tray 90 is rectangular and includes a flat plate 91 having an upper surface 93 on which feeding material is placed, and a feeding tray wall 92 extending along the periphery of the flat plate 91. In this embodiment, the feeding tray wall 92 is made of a sheet material. This makes it difficult for feeding material to scatter from the feeding tray 90 to the outside. In this embodiment, the feeding tray 90 is made of wood. The feeding tray 90 is configured to have space for multiple pigeons (e.g., 5 to 6 pigeons) to perch.

[0034] In this embodiment, as shown in Fig. 4, the height position of the upper surface 93 of the flat plate portion 91 constituting the feeding platform 90 is the same as the height position of the upper surface 22 of the bottom plate portion 20. This makes it easier to guide birds that land on the feeding platform 90 in search of food to the bottom plate portion 20.

[0035] <About bird capture method using the bird trap 10> Next, a bird capturing method using the bird trap 10 will be described with reference to Figs.

[0036] First, the worker sets up the trap 10 in the target location. Then, as shown in Fig. 5, the worker places bird food 100 on the upper surface 22 of the bottom plate portion 20 in the accommodation space, the area of ​​the upper surface 22 of the bottom plate portion 20 below the support portion 60, and the upper surface 93 of the flat plate portion 91 constituting the food stand 90. The worker also supplies water to the water supply device 85.

[0037] The area below the support portion 60 on the upper surface 22 of the bottom plate portion 20 can be used as the area for disposing the bait 101 because the shaft member 61 is disposed at a position a predetermined distance L1 away from the upper end portion of the opening 32 toward the storage space. This makes it possible to effectively provide an area for disposing the bait 101 at an important midway position for guiding the birds into the storage space.

[0038] As shown in Fig. 5, pigeons 200 are attracted to the feeding platform 90 by placing food 102 on the flat plate portion 91 of the feeding platform 90. The pigeons 200 that land on the flat plate portion 91 of the feeding platform 90 start to eat the food 102 placed on the feeding platform 90. Because the feeding platform wall portion 92 is made of a sheet material, it is possible to prevent the pigeons from being captured in a poor condition due to the food being scattered.

[0039] 6, the pigeon 200 is attracted by the food 101 placed in the lower area of ​​the upper end of the rod-shaped member 51 and starts walking toward the opening 32. At this time, the height position of the upper surface 93 of the flat plate portion 91 constituting the feeding platform 90 is the same as the height position of the upper surface 22 of the bottom plate portion 20, and since there is no step, it is easy to guide the pigeon 200 toward the opening 32. In addition, since the food 101 is placed on the upper surface 22 of the bottom plate portion 20, which is relatively non-slip, the food 101 is prevented from scattering toward the groove portion 70 and being caught between the lower end of the rod-shaped member 51 and the groove portion 70. As a result, the occurrence of malfunction of the rod-shaped member 51 can be prevented.

[0040] As shown in Fig. 7, the pigeon 200 enters the accommodation space of the birdcage body while opening the rod-shaped member 51. At this time, the arc-shaped portion 53 of the rod-shaped member 51 is in contact with the bottom portion 71 of the groove portion 70, so that the rod-shaped member 51 can be smoothly opened.

[0041] The pigeon 200 is attracted by the food 100 placed in the storage space and advances further. When the pigeon 200 advances to a certain extent, the rod-shaped members 51 close under their own weight, and the arc-shaped portions 53 of the rod-shaped members 51 come into contact with the bottom portions 71 of the groove portions 70, as shown in Fig. 8. This causes the rod-shaped members 51 and the obstacle members 80 to block the space between the storage space of the birdcage body and the opening 32. As a result, the pigeon 200 cannot get out of the storage space of the birdcage body.

[0042] After a predetermined number of days (for example, one week) have passed since the trap 10 was installed, the worker retrieves the pigeons 200 that have been captured and housed in the housing space.

[0043] During the period until the trapped pigeons are retrieved, the pigeons can drink water from the water supply 85. This makes it possible to prevent pigeons from dying during the period from when the trap 10 is installed until the pigeons are retrieved. As a result, it is possible to prevent the sanitary conditions in the cage space from deteriorating.

[0044] According to the present embodiment described above, pigeons can be effectively trapped in the storage space of the trap 10.

[0045] <Other embodiments> The above embodiment may be modified as follows.

[0046] The groove provided in the bottom plate portion 20 is not limited to having a U-shaped cross section, and may be, for example, a U-shaped cross section. In addition, the groove is not limited to being provided as a separate member from the bottom plate portion 20, and may be formed seamlessly and integrally with the bottom plate portion 20.

[0047] As shown in FIG. 9, a birdcage wall 110 may be provided that extends upward from the peripheral edge of the bottom plate 20. The birdcage wall 110 extends upward from the peripheral edge of the bottom plate 20 to a predetermined height position of the peripheral wall 30. The birdcage wall 110 is made of a surface material, for example, a transparent synthetic resin (specifically, colorless and transparent acrylic). The birdcage wall 110 can prevent food placed on the bottom plate 20 from scattering to the outside. The birdcage wall 110 and the feeder wall 92 are not provided in the pigeon's entry path between the opening 32 and the feeder 90. In other words, the birdcage wall 110 and the feeder wall 92 are provided so as to be interrupted in the range where the opening 32 is provided. This makes it easier to guide the pigeon into the storage space of the birdcage body while suppressing the scattering of food.

[0048] As shown in Fig. 10, there may be a downward step between upper surface 193 of flat plate portion 191 and upper surface 22 of bottom plate portion 20 constituting feeding platform 190 in the direction from feeding platform 190 to opening 32. Step H2 between upper surface 193 of flat plate portion 191 and upper surface 22 of bottom plate portion 20 may be, for example, a step of 5 cm or less, a step of 3 cm or less, or a step of 1 cm or less. Also, as shown in Fig. 11, there may be a downward slope instead of a downward step between upper surface 293 of flat plate portion 291 and upper surface 22 of bottom plate portion 20 constituting feeding platform 290.

[0049] Between the top surface 93 of the flat plate portion 91 and the top surface 22 of the bottom plate portion 20 that constitute the feeding platform 90, a protruding portion may be provided that protrudes above the top surfaces 93, 22. Even in this case, the configuration in which the rod-shaped members 51 are provided in an inclined state makes it easier to guide the pigeons into the storage space, thereby improving the pigeon capture efficiency.

[0050] The bottom plate portion 20 and the food tray 90 may be formed as a single member.

[0051] The obstructing members are not limited to needle-shaped members, but may be, for example, triangular plate members that close the gap between the rod-shaped members 51 at both ends and the front peripheral wall portion 31.

[0052] The opening 32 may be formed in the horizontal direction across the entire area of ​​the front peripheral wall portion 31. In this case, the peripheral wall portion 30 adjacent to the front peripheral wall portion 31 serves as an obstructing member, making the obstructing member 80 unnecessary.

[0053] The upper end of the opening 32 is not limited to one that extends linearly in the horizontal direction, and may be, for example, an arcuate shape that protrudes upward. [Explanation of symbols]

[0054] 10: bird trap, 20: bottom plate portion, 30: peripheral wall portion, 32: opening portion, 51: rod-shaped member, 90: feeding platform.

Claims

1. A bottom plate portion, A peripheral wall portion extending upward from the bottom plate portion; A ceiling portion that closes an upper side of the peripheral wall portion; Equipped with A bird trap that captures and stores birds in a storage space surrounded by the bottom plate portion, the peripheral wall portion, and the ceiling portion, The peripheral wall portion is formed with an opening through which birds can enter, An opening / closing unit that opens and closes the opening, The opening and closing portion is A plurality of rod-shaped members arranged side by side above the opening; a support portion that rotatably supports an upper side of each of the rod-shaped members; having Each of the rod-shaped members is allowed to rotate in a direction from the opening toward the accommodation space, This bird trap has a structure in which each rod-shaped member is inclined in the direction from the opening to the storage space with respect to the vertical direction, and its lower end abuts the bottom plate portion, thereby restricting rotation in the direction from the storage space to the opening.

2. a groove portion extending in a direction from the opening toward the storage space is provided in a portion of the bottom plate portion facing each of the rod-shaped members, 2. The bird trap according to claim 1, wherein the movement of the rod-shaped member in the lateral direction is restricted when the lower end of the rod-shaped member is in contact with the bottom of the groove.

3. The lower end of each of the rod-shaped members is bent to form an arc-shaped portion that is convex downward, 3. The bird trap according to claim 2, wherein the arcuate portion of each of the rod members abuts the bottom portion.

4. an upper end position of the groove portion is higher than a height position of a tip end of the arc-shaped portion of the rod-shaped member in a state in which the arc-shaped portion is in contact with the bottom portion, The bird trap described in claim 3, wherein the groove portion extends from the opening toward the storage space beyond the tip of the arc-shaped portion of the rod-shaped member when the arc-shaped portion is in contact with the bottom portion.

5. The bird trap according to any one of claims 2 to 4, wherein the bottom portion is made of a material that is more slippery than the bottom plate portion in the storage space.

6. 5. The bird trap according to claim 1, wherein the inclination angle of each of the rod members is equal to or greater than 20 degrees and equal to or less than 70 degrees.

7. a feeding tray provided on the bottom plate portion at an outer portion of the accommodation space with respect to the opening and on which bird food is placed; A bird trap as described in any one of claims 1 to 4, wherein there is a downward step or a downward slope between the feeding platform and the bottom plate in the direction from the feeding platform to the opening, or the height position of the feeding platform and the height position of the bottom plate are the same.

8. a birdcage wall portion extending upward from a peripheral edge portion of the bottom plate portion; A feeding platform wall portion extending upward from a peripheral portion of the feeding platform; Equipped with The birdcage wall portion and the feeding platform wall portion are made of a surface material, 8. The bird trap according to claim 7, wherein the birdcage wall and the feeding platform wall are provided so as to be discontinuous in an area where the opening is provided.

9. A bird catching method using the bird trap according to any one of claims 1 to 4, A preparation step of placing bait on the bottom plate portion in the storage space and on a region of the bottom plate portion below the opening and closing portion; a recovery step of recovering the birds captured in the housing space after a predetermined number of days have elapsed since carrying out the preparation step; A bird capturing method comprising:

10. The bird trap is provided with a water supply device that is disposed in the accommodation space and supplies drinking water to the birds, The bird capturing method according to claim 9 , wherein the preparation step further comprises the step of replenishing the water supply device with water.

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