Heligoland trap
Noun
Meaning
Heligoland trap (plural Heligoland traps)
A large, building-sized, funnel-shaped, rigid structure of wire mesh or netting used to catch birds for ornithological study.
Noun
Heligoland trap (plural Heligoland traps)
A large, building-sized, funnel-shaped, rigid structure of wire mesh or netting used to catch birds for ornithological study.