There has been no physical documentation but at this point the quantity of witnesses seems to be highly indicative. It makes sense too; birds are intelligent enough for tool use.
Every fujoshi knows that friends exist. However, these are fictional characters, so they can interpret them how they want, no? I feel like this saying is more appropriately applied to real life, assuming a man and a woman must be in a relationship together if they are friends or something of the...
I bet the power is probably bending the universe to whatever he expects; therefore, the glitches didn't exist until he assumed they did, thus creating them.