Page 144 - Peter Randall "The Craft of the Knot.."

STEP 2 Finish like a regular Bowline—bring the running end down

over the top and tuck it to exit parallel to the standing part.

STEP 3 Another way to tie a Cow Hitch is by first passing a bight
behind and back over the object, and then pulling both ends all the way
through the bight.

Another variation of the Cow Hitch is the Pedigree Cow Hitch—the

difference is that you tuck the running end inside the turns for extra
security. This hitch is secure enough to put tension on just the standing
part.