Homemade Spinning Bird Trap

Bird Trap

This is a multiple capture trap that spings and resets itself whenever the trap is triggered, its quite complicated as there are a lot of factors that influence its sensitivity.

This trap differs from the others by not using the locking pin for leverage to gain sensitivity, rather the pin is fixed to the bait plate. In this case all the leverage has to be contained within the bait plate.

Look at the diagram below, the two outer pieces of brass tube is glued both to the wire rod and the base plate, the centre piece of tube moves freely over the rod but is glued to the bait plate there for allowing the bait plait to pivot on the wire rod. The wire rod freely turns within the plastic brackets, the pulley is glued to one end of the rod and string is wrapped around it, onto this string is tied a heavy weight.

Now i’ll explain what happens, The trap is triggered by pressure on the bait plate, this pulls the wire back releasing it from behind the metal plate, because of the weight tied to the string on the pulley the whole base plate swings around 360 degrees dropping the bird into the cage, the weight of the locking pin combined with the inertia of the bait plate push the pin back out and it catches on the metal plate ready to be triggered again.

Trap Scheme

Sensitivity has many variables, one is the length of the bait plate, the longer the more sensitive, but there is a limit to this as the longer it is the more weight it will have therefor because it is spinning the inertia of a heavy bait plate is enough to trigger the trap, what this means is that once triggered the first time it will spin around but when the locking pin hits the metal plate the bait plate will keep moving continually springing the trap. Other factors effecting sensitivity are the diametre of the pulley, the larger it is the more leverage it will have therefor it will put more tension on the base plate and spin it faster. Also what i done was weight the side of the locking pin about twice that of the other side, this lessens the pressure pressing on the locking pin and makes it more sensitive. From above on a photo of the working parts, the brass “stops” that you see along the locking pin are adjustable so that you can gain max sensitivity. These can be bought at hobby shops that deal in parts for model radio controlled planes and cars.

More:

1. Bird Trapping And Bird Repellents
2. Box Traps
3. Homemade Yellow Jacket Trap
4. Rabbit Trap In Details
5. Homemade Raccoon Traps