Page 527 - Bob Holtzman "The Field Guide to Knots How to Identify, Tie, and Untie Over 80 Essential Knots for Outdoor Pursuits"

70. Cow Hitch

Also known as: Lark’s Head, Lanyard Hitch, Ring Hitch, Tag Hitch, Bale Sling

Hitch

The panoply of alternate names for the Cow Hitch hints at its popularity in
different trades. It’s a quick, easy way to add a loop or a pair of tie-off
points to a fixed object, and it can be tied by several methods, at the end of
a rope or on a bight. As long as both working ends are secure, it can’t come
undone.

Uses: hitching animals, hanging gear, adding loops or tie-offs to posts, rails, rings, or other ropes

Pros: simple and quick to tie by many methods; easy to untie; does not jam
Cons: insecure; slips under unequal loads

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