A fishing lure made with the tail hair of a male deer, or a type of artificial fly tied with such hair.
From 'buck' (male deer) and 'tail' (the hair from a deer's tail). This fishing term became standard in American angling vocabulary in the 1800s as commercial lure-making developed.
Bucktail flies are so effective that professional fishing guides still tie them the same way they were made over a century ago—the natural movement of deer hair in water mimics living creatures in a way synthetic materials still struggle to match.
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