Oh Draco, you didn't...

 Woman denied emotional support peacock on United flight

I am pretty sure this was Draco trying to take his Auror Peacock on a Muggle aeroplane.  There's not really any other explanation. I don't know why he was trying to do this, but I'd imagine it was a top secret mission, and that someone will write or draw a full explanation for us at some point :D

Of course if you want to brush up on the backstory, you'll need to reread dustmouth's exceptional Auror Peacock Extraordinaire. <3