Harp-trap / "Tuttle"-trap

We use a harp trap of own design in the field, to trap bats in the context of our bat-project. The trap works perfect in confined situations, roost exits on roofs, caves, etc. In open space nets should be preferred.

The trap is completely collapsible to the size of a pair of skis and can be transported conveniently in a ski-bag. The present model has an extension of 145x145 cm. Setting up the trap takes approximately 5-10 minutes. It can be accomplished alone, but two more helping hands don't hurt...

The trap was custom designed by our inhouse mechanics specialist. We will sell the trap to interested scientists and bat-protection persons, who can prove their legitimacy to trap and handle the protected bats.

Total cost for material and works of the trap will amount to CHF 2200.-, transport and insurance included.

Interested persons should contact bats@wsl.ch

The following images illustrate constructional details and the setting up of the trap:

Harp trap packed in a ski bag.

Size comparison... unpacking the trap.

One person can assemble the trap. Two need < 10min to set it up.

Harp trap in assembled state.

Connection system of vertical and horizontal elements. Tension of nylon filaments and distance of the two harps can be adjusted with sliding tubes.

Fixation of nylon filaments.

A couple of views into the holding bag and its mount at the lower frame.

Legs can be shifted an rotated along the tubular frame and set in any desired position.

The legs can be extended for flexible adaptation to the terrain.

Repair and replacement material and tools are included.