killdeer vs killdeer plover

killdeer and killdeer plover both are nouns.

Word	Noun	Adjective	Verb	Adverb
killdeer	Yes	No	No	No
killdeer plover	Yes	No	No	No

As nouns, killdeer and killdeer plover are synonyms defined as:

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

Other synonyms of killdeer include Charadrius vociferus, kildeer.

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