Zygodactylous
(a.) Yoke-footed; having the toes disposed in pairs; -- applied to birds which have two toes before and two behind, as the parrot, cuckoo, woodpecker, etc.
Similar Words:
Zygodactyl Zygodactylae Zygodactyle Zygodactyli Zygodactylic Zygodactylous