chimney swallow vs Hirundo rustica

chimney swallow and Hirundo rustica both are nouns.

Word	Noun	Adjective	Verb	Adverb
chimney swallow	Yes	No	No	No
Hirundo rustica	Yes	No	No	No

As nouns, chimney swallow and Hirundo rustica are synonyms defined as:

chimney swallow and Hirundo rustica: common swallow of North America and Europe that nests in barns etc.

Other synonyms of chimney swallow include barn swallow.

chimney swallow (noun)	Hirundo rustica (noun)
common swallow of North America and Europe that nests in barns etc.	common swallow of North America and Europe that nests in barns etc.
American swift that nests in e.g. unused chimneys