Strong's H5775עוֹף: a bird (as covered with feathers, or rather as covering with wings), often collectively KJV:bird, that flieth, flying, fowl.
Meanings: Brown-Driver-Briggs (1906) and Strong's Hebrew Dictionary (1890), public domain, via the Open Scriptures Hebrew Bible Project (CC BY 4.0). TWOT numbers for reference only.
Root family 1582: עוּףʿûp — fly; hover, fly away; fly about, to and fro, cause to fly to and fro, brandish; faint; flee away, shine forth, weary