What does "pterocnemia pennata" mean?

smaller of two tall fast-running flightless birds similar to ostriches but three-toed; found from Peru to Strait of Magellan

What is a synonym for "pterocnemia pennata"?

Common synonyms include: nandu, rhea.

Rare ·Advanced level

Noun

1
smaller of two tall fast-running flightless birds similar to ostriches but three-toed; found from Peru to Strait of Magellan wordnet