Thursday Morning Riddle

I’m a movement that birds use to soar through the air;
When your arms trace an arc while your elbows stay square;
I’m the place where you zip up the pants that you wear;
And a helper in fishing the fish find unfair.

Who am I?

UPDATE: Riddle solved by Ro. See comments for answer.

2 Responses to “Thursday Morning Riddle”

  1. ro Says:

    Fly!!

  2. Bill Says:

    FLY is correct. Way to go, Three-In-A-Ro!

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