Heligoland trap
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English[edit]
Etymology[edit]
The first such trap was located at a bird observatory on the island of Heligoland, Germany.
Noun[edit]
Heligoland trap (plural Heligoland traps)
The first such trap was located at a bird observatory on the island of Heligoland, Germany.
Heligoland trap (plural Heligoland traps)