Small built-in device for capturing parent birds in artificial nest boxes

Abstract

The utility model discloses a kind of small built-in devices for capturing parent bird in artificial nest box, comprising: setting the closure device at the entrance of artificial nest box, fan-shaped opening is set on closure device;Fan-shaped opening is set to the fan leaf group that can be unfolded to close fan-shaped opening or can be folded to open fan-shaped opening;Monitoring device, with closure device, is set in the inside of artificial nest box at interval, and monitoring device includes sensor;Remote control device for remotely sending closure device instruction signal;Control hub for receiving the signal of remote control device and monitoring device and controlling the closure condition of closure device, control hub and closure device are set in split type.The utility model uses split type design, closure device uses special fan leaf structure, small and exquisite, can be placed in nest box inside, and can be activated to close by remote control, to a certain extent reduce the vigilance behavior of parent bird, improve capture success rate, it is favorable to carry out the development of the field experiment of the parent bird sample required.

Description

Technical Field

[0001] This utility model relates to the field of bird ecological monitoring technology, and in particular to a small built-in device for capturing parent birds in an artificial nest box. Background Technology

[0002] Numerous studies have indicated that even bird populations traditionally considered monogamous often engage in extramarital mating, a behavior believed to benefit female reproductive success. This is because females can acquire superior genes and additional reproductive resources through extramarital mating, and can also secretly select genetically more compatible mates to produce superior offspring. Therefore, research on extramarital mating helps in understanding how birds adjust their relationships with social partners in different environments to maximize reproductive success.

[0003] However, obtaining data on extramarital mating in the wild is extremely challenging because researchers must obtain DNA data from the parents corresponding to a brood of offspring. Currently, the commonly used method involves capturing adult birds on a large scale, collecting blood samples for DNA testing, and then comparing this DNA with offspring DNA data from natural nests obtained through extensive searches or from pre-suspended artificial nests. This method is feasible for closed populations, and as research teams accumulate bird captures over the years, they can obtain a relatively comprehensive population DNA database. However, for open populations, the migration of individuals between different populations reduces the probability of obtaining corresponding parent bird samples through large-scale capture. Therefore, a method is needed to directly capture parent birds within artificial nests. To achieve this, it is necessary to reduce the parent birds' wariness of nest boxes with bird traps installed, and to avoid the influence of the nest box's internal structure, such as nesting material, on the traps. Traditional sliding door structures are bulky, relatively inconvenient to install inside nest boxes, and easily affected by nesting material.

[0004] Therefore, based on years of experience and practice in related industries, the inventor proposes a small built-in device for capturing parent birds in artificial nest boxes to overcome the shortcomings of existing technologies. Utility Model Content

[0005] The purpose of this invention is to provide a small built-in device for capturing parent birds in an artificial nest box, overcoming the problems of large size and low capture success rate of traditional closed doors in the prior art. This invention adopts a split design, and the closing device adopts a special fan-blade structure, which is small in size, reduces the vigilance of parent birds to a certain extent, improves the capture success rate, and is conducive to the development of field experiments that require parent bird samples.

[0006] The purpose of this invention is achieved as follows: a small built-in device for capturing parent birds within an artificial nest box, comprising: A closing device is provided at the entrance of the artificial nest box, the closing device having a fan-shaped opening corresponding to the entrance of the artificial nest box; the fan-shaped opening is provided with a fan blade assembly that can be opened to close the fan-shaped opening or retracted to open the fan-shaped opening; A monitoring device is disposed inside the artificial nest box at an interval from the closing device. The monitoring device includes a sensor that can monitor and sense parent birds entering and leaving the artificial nest box and can emit sensing signals. Remote control device for remotely issuing closing device command signals; A control center is used to receive signals from the remote control device and the monitoring device and to control the closing status of the closing device. The control center and the closing device are separately configured.

[0007] In a preferred embodiment of the present invention, the first side of the fan blade assembly is fixed to the first side of the fan-shaped opening, and the second side of the fan blade assembly can be folded up to the first side of the fan-shaped opening or can be rotated and unfolded to the second side of the fan-shaped opening.

[0008] In a preferred embodiment of the present invention, the fan blade assembly is a folding fan structure; the fan blade assembly includes multiple fan blades, the first end of each fan blade is hinged to the center of the fan-shaped opening, the second end of each fan blade can abut against the arc edge of the fan-shaped opening, and the second ends of two adjacent fan blades are connected by a connecting line.

[0009] In a preferred embodiment of the present invention, the closing device includes a servo motor, which is connected to the second side of the fan blade assembly to drive the fan blade assembly to unfold or retract, and the servo motor is electrically connected to the control center.

[0010] In a preferred embodiment of the present invention, the closing device further includes a first support structure fixedly disposed inside the artificial nest box, the first support structure being provided with the fan-shaped opening, the fan blade assembly being disposed at the fan-shaped opening, and the servo motor being disposed on the first support structure.

[0011] In a preferred embodiment of this utility model, the fan blade on the first side of the fan blade group is designated as the first fan blade, and the fan blade on the second side of the fan blade group is designated as the second fan blade; the first fan blade is fixedly connected to the first support structure, the second fan blade is connected to the servo motor, the servo motor drives the second fan blade to rotate within the fan-shaped opening and drives the fan blade between the first fan blade and the second fan blade to rotate through the connecting line.

[0012] In a preferred embodiment of the present invention, the monitoring device includes a second support structure, the second support structure being provided with a through-hole that allows parent birds to pass through; at least one pair of sensors are provided on the second support structure at a position opposite to the through-hole.

[0013] In a preferred embodiment of this invention, the sensor is a through-beam infrared sensor.

[0014] In a preferred embodiment of the present invention, the remote control device includes a remote controller with a built-in wireless transmission module. The remote controller is provided with several buttons, and the wireless transmission module transmits a closing device command signal.

[0015] In a preferred embodiment of this utility model, the control center includes a microcontroller module, a wireless receiving module, and a detachable power supply. The closing device, the sensor, the wireless receiving module, and the detachable power supply are all electrically connected to the microcontroller module. The wireless receiving module is paired with the wireless transmitting module. The wireless receiving module receives the closing device command signal sent by the wireless transmitting module and sends the signal to the microcontroller module. The microcontroller module processes signals from the remote control device and the monitoring device and sends control signals to the closing device to control the closing status of the closing device.

[0016] As described above, the small built-in device of this utility model for capturing parent birds in an artificial nest box has the following beneficial effects: The present invention provides a small built-in device for capturing parent birds in an artificial nest box. It can sense the entry and exit of parent birds through a monitoring device and close the entrance of the nest box through a closing device to achieve the purpose of capturing parent birds. At the same time, the closing device can also be controlled, locked or unlocked by a remote control device. This allows the device to be remotely activated or deactivated after being powered on. Placing the device in advance and powering it on, allowing the parent birds to adapt for a period of time, and then activating the device without approaching can effectively improve the capture success rate.

[0017] The closing device provided by this utility model has a special fan-blade structure, which is less affected by the blockage of nesting material. The device is very compact and can be placed in most artificial nest boxes.

[0018] The entire device uses a split design. The larger control center can be placed outside the nest box or inside the nest box, while the relatively small closed device can be placed separately inside the nest box. This reduces the parent birds' wary behavior to some extent and is conducive to conducting field experiments that require parent bird samples. Attached Figure Description

[0019] The following figures are intended only to illustrate and explain the present invention and do not limit the scope of the present invention. Wherein: Figure 1 This is a schematic diagram of the closing device of this utility model when it is closed.

[0020] Figure 2 This is a schematic diagram of the closing device of this utility model when it is opened.

[0021] Figure 3 This is a schematic diagram of the assembled small built-in device for capturing parent birds in an artificial nest box according to this utility model.

[0022] Figure 4 This is a schematic diagram of the workflow of the control center of this utility model.

[0023] In the picture: 1. Antenna; 2. Fan blades; 3. Connecting cable; 4. Closing device; 5. Servo motor; 6. Buttons; 7. Remote control device; 8. Wireless receiver module; 9. Microcontroller module; 10. Detachable power supply; 11. Control center; 12. Sensors; 13. Monitoring devices; 14. Artificial nest box; 141. Layer; 142. Partition; 143. Anterior chamber; 144. Nesting cell; 15. Entrance. Detailed Implementation

[0024] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described with reference to the accompanying drawings.

[0025] The specific embodiments of the present invention described herein are for illustrative purposes only and should not be construed as limiting the present invention in any way. Under the teachings of this invention, those skilled in the art can conceive of any possible modifications based on this invention, and these should all be considered within the scope of this invention. It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intervening element. The terms "mounted," "connected," and "linked" should be interpreted broadly; for example, they can refer to mechanical or electrical connections, or internal connections between two elements, and can be direct or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible embodiments.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] like Figures 1 to 3 As shown, this utility model provides a small built-in device for capturing parent birds inside an artificial nest box, comprising: A closing device 4 is provided at the entrance 15 of the artificial nest box 14. The closing device 4 is provided with a fan-shaped opening corresponding to the entrance 15 of the artificial nest box 14. A fan-shaped blade assembly is provided at the fan-shaped opening, which can be opened to close the fan-shaped opening or retracted to open the fan-shaped opening. The closing device 4 is small in size and can be placed in most artificial nest boxes 14. The entrance 15 of the artificial nest box 14 is closed or opened by opening and closing the fan-shaped blade assembly.

[0028] The monitoring device 13 is disposed inside the artificial nest box 14 at a distance from the closing device 4. The monitoring device 13 includes a sensor 12 that can monitor and sense the parent birds entering and leaving the artificial nest box 14 and can emit sensing signals. The closing device 4 should be placed close to the entrance 15 of the artificial nest box 14. To prevent birds from not fully entering the artificial nest box 14 when the closing device 4 is triggered, the monitoring device 13 should be placed at a certain distance from the closing device 4, i.e., at the aforementioned interval.

[0029] Remote control device 7 for remotely issuing closing device command signals; closing device command signals include signals such as open, close, lock, or unlock.

[0030] The control center 11 is used to receive signals from the remote control device 7 and the monitoring device 13 and to control the closing status of the closing device 4. The control center 11 and the closing device 4 are separately arranged. The closing device 4 and the control center 11 are separate and connected only by wires. The closing device 4 can be placed inside the artificial nest box, while the control center 11 is placed in other locations.

[0031] In this invention, the closing device 4 is responsible for closing the entrance of the artificial nest box to confine the parent birds; the monitoring device 13 is responsible for monitoring the parent birds entering and leaving the artificial nest box 14 and sending the information to the control center 11. The remote control device 7 can remotely control the opening and closing of the closing device 4 and its locking status. The control center 11 is responsible for receiving signals from the remote control device 7 and the monitoring device 13 and controlling the closing status of the closing device 4.

[0032] The small built-in device for capturing parent birds in an artificial nest box provided by this utility model can sense the entry and exit of parent birds through a monitoring device and close the entrance of the nest box through a closing device to achieve the purpose of capturing parent birds. At the same time, the closing device can also be controlled, locked or unlocked by a remote control device (after connecting the closing device 4 to a battery or power and placing it in the artificial nest box 14, the parent birds are not captured immediately. Instead, the parent birds are locked by the remote control device 7 to allow them to enter and exit normally for a period of time before being activated by the remote control device 7 to improve the capture success rate). This allows the device to be remotely activated or deactivated after being powered on. Placing the device in advance and powering it on, allowing the parent birds to adapt for a period of time, and then activating the device without approaching can effectively improve the capture success rate.

[0033] This invention uses a special fan-shaped closing structure. Compared with the traditional sliding door structure, it does not rely on gravity to close. When the switch is accidentally triggered, the device can be restarted without approaching the nest box (accidental triggering of the switch refers to the presence of nesting material in the artificial nest box, where the activities of chicks / parent birds may affect the shape of the nesting material and / or cause the nesting material to move, thus accidentally triggering the monitoring device 13 and causing the closing device 4 to close). On the other hand, it is less affected by nesting material blockage. Even if a small amount of nesting material blocks the fan-shaped opening of the closing device, the rotation of the fan blade assembly will cause the small amount of nesting material to be thrown to one side. This fan blade structure also makes the closing device compact, making it easier to place inside the nest box and to install or remove it in different nest boxes.

[0034] The entire device uses a split design. The larger control center can be placed outside the nest box or inside the nest box, while the relatively small closed device can be placed separately inside the nest box. This reduces the parent birds' wary behavior to some extent and is conducive to conducting field experiments that require parent bird samples.

[0035] The present invention provides a small built-in device for capturing parent birds in an artificial nest box. The device 13 can monitor the entry and exit of parent birds in the nest box, and the closing device 4 can close the entrance of the nest box to capture the parent birds.

[0036] The closing device 4 provided by this utility model has a special fan-blade structure, which is less affected by the blockage of nesting material. The device is very small and can be placed in most artificial nest boxes.

[0037] The closing device 4, monitoring device 13, and control center 11 provided by this utility model adopt a split design. Only the closing device 4 and monitoring device 13 need to be placed inside the nest box, while the control center 11 can be placed outside the nest box, which greatly reduces the space area inside the nest box required when the device is actually used.

[0038] Furthermore, the first side of the fan blade assembly is fixed to the first side of the fan-shaped opening, and the second side of the fan blade assembly can be folded up to the first side of the fan-shaped opening or can be rotated and unfolded to the second side of the fan-shaped opening. When the second side of the fan blade assembly unfolds to the second side of the fan-shaped opening, the fan blade assembly opens, closing the entrance of the artificial nest box.

[0039] Furthermore, such as Figure 1 As shown, the fan blade assembly is a folding fan structure; the fan blade assembly includes multiple fan blades 2, the first end of each fan blade 2 is hinged to the center of the fan-shaped opening, the second end of each fan blade 2 can abut against the arc edge of the fan-shaped opening, and the second ends of two adjacent fan blades 2 are connected by a connecting line 3.

[0040] Furthermore, such as Figure 1 , Figure 2 As shown, the closing device 4 includes a servo motor 5, which is connected to the second side of the fan blade assembly to drive the fan blade assembly to unfold or retract. The servo motor 5 is electrically connected to the control center 11.

[0041] Furthermore, the closing device 4 also includes a first support structure fixedly installed inside the artificial nest box 14, a fan-shaped opening on the first support structure, a fan blade assembly at the fan-shaped opening, and a servo motor 5 installed on the first support structure.

[0042] Furthermore, the blade on the first side of the fan blade assembly is designated as the first fan blade, and the blade on the second side of the fan blade assembly is designated as the second fan blade. The first fan blade is fixedly connected to the first support structure, and the second fan blade is connected to a servo motor 5. The output end of the servo motor 5 includes a rotating shaft, which is fixedly connected to the second fan blade. The servo motor drives the second fan blade to rotate within the fan-shaped opening via the rotating shaft and drives the fan blade 2 between the first and second fan blades to rotate via the connecting line 3, thereby realizing the expansion or contraction of the fan blade assembly. Specifically, the servo motor 5 can drive the second fan blade to rotate 90°, at which time the connecting line 3 drives all fan blades to rotate step by step. In a specific embodiment: like Figure 1 , Figure 2 As shown, the fan blade 2 is designed as a long strip structure, which saves more material and space compared with the traditional fan blade structure. One end of it (the second end of the fan blade 2, which can abut against the arc edge of the fan-shaped opening) is designed as an arc to reduce the friction between it and the first support structure. These fan blades are placed side by side in the first support structure. The second fan blade (the outermost fan blade) is connected to the servo motor 5, and the first fan blade (the innermost fan blade) is connected to the first support structure through the connecting line 3. In addition, the fan blade 2 is made of PETG material, which has a certain mechanical strength to avoid damage from collisions with parent birds.

[0043] The first support structure is a frame-like structure made of PETG material, used to restrict the rotation of the fan blade 2 and fix the position of the servo motor 5.

[0044] The connecting line 3 is a thin line that connects each fan blade 2. It mediates the drive of the outer fan blade to the inner fan blade and also prevents the parent bird from rushing out through the gap between the fan blades 2. To ensure sturdiness and durability, the thin line is made of polyethylene fiber material.

[0045] Servo motor 5 is a drive mechanism, fixed within the first support structure, and connected to the second fan blade (outermost fan blade). It is responsible for driving the rotation of the second fan blade (outermost fan blade). Compared to a stepper motor, servo motor 5 is controlled by a PWM signal and fixes the shaft to a specific angle. This overcomes the possibility of fan blade 2 loosening when a bird impacts the closing device 4. The fan blade assembly can be locked or unlocked via servo motor 5.

[0046] Furthermore, such as Figure 1 , Figure 2 As shown, the monitoring device 13 includes a second support structure, on which a passageway is provided to allow parent birds to pass through; at least one pair of sensors 12 are provided on the second support structure at a position opposite to the passageway, and when an object passes through, the sensors send a signal to the control center 11.

[0047] Furthermore, sensor 12 is a through-beam infrared sensor, and there are two sensors 12 arranged opposite each other at the through opening. When the rays emitted by one end of the through-beam infrared sensor are blocked, a signal will be sent to the control center 11.

[0048] In one specific embodiment: like Figure 1 , Figure 2 As shown, the sensor 12 of the monitoring device 13 is a through-beam infrared sensor. Since the inside of the nest box is a relatively dark light environment, the infrared sensor can detect the birds entering and leaving very sensitively. The through-beam infrared sensor is a pair of infrared transmitters and receivers, which are fixed on the second support structure. When the birds pass by, the infrared rays are blocked, and the through-beam infrared sensor sends a signal to the control center 11 connected to it.

[0049] The second support structure is a U-shaped structure made of PETG material, which is responsible for fixing the through-beam infrared sensor and preventing the sensor from being accidentally activated due to the movement of bird offspring or the movement of the nest box due to environmental factors.

[0050] Furthermore, such as Figure 1 , Figure 2 As shown, the remote control device 7 includes a remote controller with a built-in wireless transmission module. The remote controller is equipped with several buttons 6. The wireless transmission module transmits a closing device command signal, which is received by the control center 11. After programming, the remote control device 7 can not only control the opening and closing of the closing device 4, but also lock the closing device 4. The purpose of locking or unlocking the closing device 4 is to allow the parent bird to enter and exit normally for a period of time while the closing device 4 is locked, and then unlock it. The main purpose is to increase the capture success rate.

[0051] Furthermore, such as Figure 1 , Figure 2 As shown, the control center 11 includes a microcontroller module 9, a wireless receiver module 8, and a detachable power supply 10. The closing device 4 (specifically, a servo motor 5), sensor 12, wireless receiver module 8, and detachable power supply 10 are all electrically connected to the microcontroller module 9. The wireless receiver module 8 is paired with the wireless transmitter module. The wireless receiver module 8 receives the closing device command signal sent by the wireless transmitter module and sends the signal to the microcontroller module 9. The microcontroller module 9 processes the signals from the remote control device 7 and the monitoring device 13 and sends control signals to the closing device 4 to control the closing status of the closing device 4.

[0052] In one specific embodiment: like Figure 1 , Figure 2 , Figure 4 As shown, the microcontroller module 9 processes signals from the wireless receiving module 8 and the monitoring device 13, and sends PWM signals to control the servo motor 5 in the closing device 4 to rotate or hover at a fixed angle, so as to achieve the purpose of closing or opening the entrance of the nest box; the microcontroller module 9 is connected to the closing device 4 and the monitoring device 13 through wires.

[0053] The wireless receiver module 8 is paired with the wireless transmitter module in the remote control device 7. It is connected to an antenna 1 that extends the receiving range, and the received signal is sent to the microcontroller module 9.

[0054] The detachable power supply 10 is mainly a flat-top rechargeable lithium battery, which is fixed in the charging and discharging module. It can be directly connected to the microcontroller module 9 via a USB interface. The detachable design allows the battery life of the entire device to be improved by replacing the power supply. The replaced battery can be reused after being charged.

[0055] The control center 11 includes a third support structure, which is a box-shaped structure made of PETG material, with baffles inside to fix the positions of each module.

[0056] The installation and operation process of the small built-in device for capturing parent birds in an artificial nest box according to this utility model includes: 1. Place the monitoring device 13 and the closing device 4 inside the nest box and secure them (nano tape can be used). The closing device 4 should be close to the entrance 15 of the artificial nest box 14. To prevent birds from not fully entering the artificial nest box 14 when the closing device is triggered, the monitoring device 13 should be placed at a certain distance from the closing device 4.

[0057] Specifically, such as Figure 3 As shown, the top of the inner cavity of the artificial nest box 14 is provided with a mezzanine 141. The space below the mezzanine 141 is divided into a front chamber 143 and a nest chamber 144 by a partition 142. The monitoring device 13 is provided on one side of the partition 142, and the through-hole on the monitoring device 13 forms a communication port between the front chamber 143 and the nest chamber 144.

[0058] 2. Secure the control center 11 to the back of the nest box and the interlayer 141 of the artificial nest box (e.g., Figure 3 (As shown) or in a concealed spot in nearby trees, places should be avoided so that birds can see directly from them.

[0059] 3. Connect the power supply to the control center 11 and set whether to lock it through the remote control device 7 (to make the parent birds relax their vigilance, it can be locked first to allow the parent birds to enter and exit normally for a period of time, and then the lock can be released).

[0060] 4. Leave the nest box to prevent birds from seeing humans directly, and check the area periodically.

[0061] 5. After observing that the entrance to the artificial nest box is closed, open the artificial nest box and capture the parent birds.

[0062] The small built-in device for capturing parent birds in artificial nest boxes provided by this utility model can not only capture parent birds in nest boxes, but also capture other animal individuals that have the habit of nesting in small spaces and move very quickly.

[0063] The above description is merely an illustrative embodiment of this utility model and is not intended to limit the scope of this utility model. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principles of this utility model should fall within the protection scope of this utility model.

Claims

1. A small built-in device for capturing parent birds within an artificial nest box, characterized in that, include: A closing device is provided at the entrance of the artificial nest box, and the closing device is provided with a fan-shaped opening corresponding to the entrance of the artificial nest box; The fan-shaped opening is provided with a fan blade assembly that can be opened to close the fan-shaped opening or retracted to open the fan-shaped opening; A monitoring device is disposed inside the artificial nest box at an interval from the closing device. The monitoring device includes a sensor that can monitor and sense parent birds entering and leaving the artificial nest box and can emit sensing signals. Remote control device for remotely issuing closing device command signals; A control center is used to receive signals from the remote control device and the monitoring device and to control the closing status of the closing device. The control center and the closing device are separately configured.

2. The small built-in device for capturing parent birds within an artificial nest box as described in claim 1, characterized in that, The first side of the fan blade assembly is fixed to the first side of the fan-shaped opening, and the second side of the fan blade assembly can be folded up to the first side of the fan-shaped opening or can be rotated and unfolded to the second side of the fan-shaped opening.

3. The small built-in device for capturing parent birds in an artificial nest box as described in claim 2, characterized in that, The fan blade assembly is a folding fan structure; the fan blade assembly includes multiple fan blades, the first end of each fan blade is hinged to the center of the fan-shaped opening, the second end of each fan blade can abut against the arc edge of the fan-shaped opening, and the second ends of two adjacent fan blades are connected by a connecting line.

4. The small built-in device for capturing parent birds in an artificial nest box as described in claim 3, characterized in that, The closing device includes a servo motor, which is connected to the second side of the fan blade assembly to drive the fan blade assembly to unfold or retract, and the servo motor is electrically connected to the control center.

5. The small built-in device for capturing parent birds within an artificial nest box as described in claim 4, characterized in that, The closing device further includes a first support structure fixedly installed inside the artificial nest box, the first support structure having the fan-shaped opening, the fan blade assembly being installed at the fan-shaped opening, and the servo motor being installed on the first support structure.

6. The small built-in device for capturing parent birds within an artificial nest box as described in claim 5, characterized in that, The blade on the first side of the blade assembly is designated as the first blade, and the blade on the second side of the blade assembly is designated as the second blade. The first blade is fixedly connected to the first support structure, and the second blade is connected to the servo motor. The servo motor drives the second blade to rotate within the fan-shaped opening and drives the blades between the first blade and the second blade to rotate through the connecting line.

7. The small built-in device for capturing parent birds within an artificial nest box as described in claim 1, characterized in that, The monitoring device includes a second support structure, on which a passageway is provided to allow parent birds to pass through; at least one pair of sensors are provided on the second support structure at a position opposite to the passageway.

8. The small built-in device for capturing parent birds in an artificial nest box as described in claim 7, characterized in that, The sensor is a through-beam infrared sensor.

9. The small built-in device for capturing parent birds within an artificial nest box as described in claim 1, characterized in that, The remote control device includes a remote controller with a built-in wireless transmission module. The remote controller is equipped with several buttons, and the wireless transmission module transmits a closing device command signal.

10. The small built-in device for capturing parent birds within an artificial nest box as described in claim 9, characterized in that, The control center includes a microcontroller module, a wireless receiver module, and a detachable power supply. The closing device, the sensor, the wireless receiver module, and the detachable power supply are all electrically connected to the microcontroller module. The wireless receiver module is paired with the wireless transmitter module. The wireless receiver module receives the closing device command signal sent by the wireless transmitter module and sends the signal to the microcontroller module. The microcontroller module processes signals from the remote control device and the monitoring device and sends control signals to the closing device to control the closing status of the closing device.

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