User blog comment:Logo8th/More Unknown Creatures from the Pottermore Map/@comment-27143814-20171210001432/@comment-23825763-20171210001725

Sounds like a good idea. By the way, do you know of any instance with witches on brooms with a dragon. The only examples I can think of are the annual broom race and the Triwizard Tournament, but this doesn't look like either of them. It does have a reddish color, so I'd suggest that it's either a Chinese Fireball, a Hungarian Horntail, or even a Catalonian Fireball.