See Also: Heligoland trap(dictionary)
fly-trap(dictionary)
trap(medicine)
trap(5)(dictionary)
trap(4)(dictionary)
trap(3)(dictionary)
Value trap(finance)
trap(2)(dictionary)
rat-trap(dictionary)
trap(6)(dictionary)

Heligoland trap (iou)



Heligoland trap noun phr. M20.
[Heligoland, an island in the North Sea off the NW German coast, site of the earliest bird observatory.]
A long funnel-shaped enclosure of wire netting into which birds are driven for ringing.