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Fladry consists of interspersed flagging suspended from a strand of electrified cordage.

Even slight movement of the dangling flags provides a novel stimulus that triggers a fear response in wolves to unfamiliar things.

Fladry is a temporary solution, however, because eventually wolves will test the fence. This tool works well for short duration (roughly 60 days), smaller acreage (fewer than 250 acres) applications, such as calving pastures. 

People and Carnivores has developed a set of best practices for the implementation, maintenance, and take-down of fladry, which is available in our comprehensive Fladry Manual.

Flagging Down Wolves (4:57)

Introduction to Using Fladry (3:23)