I killed a 4 beard bird last year and it was the 2nd one in my uncle's taxidermy shop last year. There was another 4 beard and a few triple's in there last year. This year he's received at least that many double plus bearded birds if not more. All 4 birds I killed this year were single beards and was curious of how much genetics were running around on the property that I killed the 4 bearded one last year. Killed one off it this year and seen another that best I could tell didn't have multiple beards.
Did see one across the road on my property that looked to be a double beard but it was raining so could've just been him wet and the beard was flapping around making him look like a double beard.