Charadrius vociferus vs killdeer

Charadrius vociferus and killdeer both are nouns.

Word	Noun	Adjective	Verb	Adverb
Charadrius vociferus	Yes	No	No	No
killdeer	Yes	No	No	No

As nouns, Charadrius vociferus and killdeer are synonyms defined as:

Charadrius vociferus and killdeer: American plover of inland waters and fields having a distinctive cry

Other synonyms of Charadrius vociferus include kildeer, killdeer plover.

Charadrius vociferus (noun)	killdeer (noun)
American plover of inland waters and fields having a distinctive cry	American plover of inland waters and fields having a distinctive cry