Saiga tatarica vs saiga

Saiga tatarica and saiga both are nouns.

Word	Noun	Adjective	Verb	Adverb
Saiga tatarica	Yes	No	No	No
saiga	Yes	No	No	No

As nouns, Saiga tatarica and saiga are synonyms defined as:

Saiga tatarica and saiga: goat-like antelope of central Eurasia having a stubby nose like a proboscis

Saiga tatarica (noun)	saiga (noun)
goat-like antelope of central Eurasia having a stubby nose like a proboscis	goat-like antelope of central Eurasia having a stubby nose like a proboscis