Fladry

Fladry is a rope mounted along the top of a fence, from which are suspended strips of fabric or colored flags, that will flap in a breeze.

[1] Fladry lines have been used for this purpose for several centuries, traditionally for hunting wolves in Eastern Europe.

The use of fladry also has been suggested among techniques to prevent wolves from being attracted to dead stock that may be in conditions that make it difficult for ranchers to remove or bury the carcasses,[2] which endangers the livestock herd once the wolves are attracted.

The Soviet singer and songwriter Vladimir Vysotsky (1938-1980) mentions fladry in his famous song "Wolf Hunt [ru]"; 1968).

Fladry is understood as a metaphor of the stance of powers-that-be toward the people of free spirit, and the singer sees "crossing the fladry" as a salvation (for volves, in the song, but huis listeners knew what he meant).