OP please confirm if there are any other part-Flying Pokemon that cannot participate. Here is a list:
Normal/Flying: Pidgey, Pidgeotto, Pidgeot; Spearow, Fearow; Farfetch'd; Doduo, Dodrio; Hoothoot, Noctowl; Taillow, Swellow; Swablu; Starly, Staravia, Staraptor; Chatot; Pidove, Tranquill, Unfezant; Rufflet, Braviary; Fletchling
Pure Flying: Tornadus-Incarnate; Tornadus-Therian
Poison/Flying: Zubat, Golbat, Crobat
Ground/Flying: Gligar, Gliscor; Landorus-I; Landorus-T
Rock/Flying: Aerodactyl; Mega Aerodactyl; Archen, Archeops
Bug/Flying: Butterfree; Scyther; Ledyba, Ledian; Yanma, Yanmega; Beautifly; Masquerain; Ninjask; Mothim; Combee, Vespiquen; Vivillon
Ghost/Flying: Drifloon, Drifblim
Steel/Flying: Skarmory
Fire/Flying: Moltres; Ho-Oh; Fletchinder, Talonflame
Water/Flying: Gyarados; Mantyke, Mantine; Wingull, Pelipper; Ducklett, Swanna
Grass/Flying: Hoppip, Skiploom, Jumpluff; Tropius; Shaymin-S
Electric/Flying: Zapdos; Rotom-F; Emolga; Thundurus-I; Thundurus-T
Psychic/Flying: Nato, Xatu; Lugia; Woobat, Swoobat; Sigilyph
Ice/Flying: Articuno; Delibird
Dragon/Flying: Dragonite; Altaria; Salamence; Rayquaza; Noibat, Noivern (Flying/Dragon)
Dark/Flying: Murkrow, Honchcrow; Vullaby, Mandibuzz; Yveltal
Fairy/Flying: Togetic, Togekiss
