Crobat, Gyarados, Staraptor, Noivern, Mega Gyarados, Mega-Aerodactyl, the Mega-Zards (I hope to god she has one of those instead of Mega-Mence, that would be brutal). Hawlucha. There are a lot of good flying types. I think Heather's most likely going to be more a offense-based Flying type trainer, since Ciel was defensive. So I don't think we'll have to worry about stuff like Skarmory.
To be honest, I was convinced she was a dragon trainer too for a while. It wasn't until I saw Shelly had named her Yanmega after Heather that I realised that she used flying types(that and I guess the name should've tipped me off too).