Well, Young has finally had his say on the incident himself, and admitted he has no clue what happened either.
Speaking to Sky Sports as reported by the Manchester Evening News, Young said: "I couldn't tell you. I need to put it out there, I don't actually know. I don't know what happened.
"You would have seen a reaction from me. I've seen the video about 100 times. I don't know what it was. I need to get to the bottom of it.
"After it actually happened - I don't know who it was and I need to get to the bottom of this as well - above my locker there was a pigeon put up.
"I walked in and though 'oh no'. And that was it, everyone started taking pictures of it. Everyone thinks it actually happened. I don't know, I couldn't tell you."
Manchester United lost the fixture against Swansea at Old Trafford 2-1, with Young filling in at left-back and left wing-back in a make-shift back-line.
Young's place under threat?
With Luke Shaw now close to returning to the starting lineup after a hamstring injury, Young could find his first-team opportunities limited following an unexpected run in the first eleven to start the season.
The former-Aston Villa star was thought to be one of several players made available by Louis van Gaal ahead of the summer deadline. But his flexibility to play several positions and Shaw's injury granted him a reprieve.
It would not be a surprise however, to see the United midfielder depart the club in the January transfer window. Van Gaal has already let several squad players leave, including Tom Cleverley, Danny Welbeck and Javier Hernandez.
MLS optimistic over David Beckham's Miami stadium