kildeer vs killdeer

kildeer and killdeer both are nouns.

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

As nouns, kildeer and killdeer are synonyms defined as:

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

Other synonyms of kildeer include Charadrius vociferus, killdeer plover.

kildeer (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