killdeer vs kildeer

killdeer and kildeer both are nouns.

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

As nouns, killdeer and kildeer are synonyms defined as:

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

Other synonyms of killdeer include Charadrius vociferus, killdeer plover.

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