How big is the cage they are in? Can you give more details like ages and sex and what is happening when this seems to happen? I know one of my guys used to do this to the other one but only sometimes if the opportunity was there for a few seconds. It was almost like an annoyed "and this is what you get for shoving your tail in my nose" type of thing.
@Ripshod @Lady Jane
I see that you’re from Australia?! That’s awesome. Do you see wild budgies everLol, sometimes when mine used to do it there would be one budgie hanging completely free of perch or bar support from the other budgies tail like it was a swing and the hanging bird would look like it was trying to ride a bike with them teeny budgie legs and toes going crazy It honestly was one of the funniest things I have seen budgies do!