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The Longworth Trap has been widely used in the UK for many years and is our most popular small mammal trap. It is designed to minimise the discomfort of the animal and to provide a safe, warm place for them until they are released. Constructed from anti-corrosion aluminium, it is lightweight for field use and is designed to allow easy access to all parts for cleaning.
The trap consists of two parts: a tunnel which contains the door tripping mechanism and a nest box, which is attached to the back of the tunnel. The sensitivity of the tripping mechanism is adjustable and the nest box provides a large space for food and bedding material. These will ensure that the trapped animal is comfortable until release. When in use the nest box should be placed at an upwards angle to the trap tunnel to prevent rain entering and to provide drainage of urine or condensation. When the trap is not in use the tunnel can be conveniently placed inside the nest box for easy carriage or storage.
A Longworth trap with shrew hole is also available. This trap has a small hole which will allow shrews to escape.
NB: Some small mammal species are protected by law (e.g. shrews in the UK) and you must obtain a licence from Natural England, Scottish Natural Heritage or Natural Resources Wales if you set traps with the intention of trapping any species of shrew. Please ensure you are aware of and meet the requirements of any relevant laws in the country in which you are trapping.
For more information on small mammal traps see the NHBS Guide to Small Mammal Survey Equipment.
Longworth Small Mammal Trap Instructions
* Weight: 300g
* Construction: Corrosion-resistant aluminium
* Size of nest chamber: 14 x 6.5 x 8.5cm
* Total length when set: Approx 25cm