All members of this egg group are of the Template:Type2, making it one of only three egg groups to be composed of more than one member that has a single type shared among all members. Pokémon in the Flying egg group are generally based on birds, though a handful are based on other flying creatures of the present & past e.g. Zubat, Golbat, Crobat, Woobat and Swoobat, the flying mammals; Aerodactyl, a flying reptile and several others such as Togetic, Togekiss, Skarmory, Sigilyph, Archen and Archeops whose origins are unclear or stem from a variety of creatures.