From ornothology, having a flat breastbone with a keel and so unable to fly.
Ratite describes flightless birds, as opposed to carinate birds, which are birds that have flight.
“The emu can run fast but it’s still ratite.”
Itinerant (adj) (noun)
Travelling from place to place. / A person who travels from place to place.
Late 16th century (used to describe a judge travelling on a circuit): from late Latin itinerant- ‘travelling’, from the verb itinerari, from Latin iter, itiner- ‘journey, road’.