Joy Flight over YMIA

[ZAZ]

Couple planes were seen cavorting and cohorting up at Flight Levels in close proximity Wednesday arvo SW of YMIA creating a hazard alert by Mel Centre and a few traffic hiccups.
One was an Airvan the other some hot home built
Not on radio CTAF or area for over half an hour but both squawking ADSB Codes
Take a rewind on FR24 and check it out around 300pm local LOL
Bit of please explain methinks maybe not.
:ok:

[DaveReidUK]

Mildura, for anyone else who doesn't have the entire contents of ICAO Doc 7910 memorised.

[Capn Bloggs]

Cavorting Kangaroos! What next? Good to see they've got ADS-B. Get with the program, Dick!:ok: