1) American historians 2) Billy goat features 3) Black or red pirate features 4) Challenges 5) Chin covers 6) Crumb catchers, often 7) Defies 8) Facial disguises 9) Facial features 10) Facial growths 11) Giant schnauzer features 12) Goat features 13) Goat hangers 14) Goatees 15) Goatees and others 16) Goatees, etc Found on https://www.crosswordclues.com/clue/beards