longlegs vs stilt plover

longlegs and stilt plover both are nouns.

Word	Noun	Adjective	Verb	Adverb
longlegs	Yes	No	No	No
stilt plover	Yes	No	No	No

As nouns, longlegs and stilt plover are synonyms defined as:

longlegs and stilt plover: long-legged three-toed black-and-white wading bird of inland ponds and marshes or brackish lagoons

Other synonyms of longlegs include Himantopus stilt, long-legs, stilt, stiltbird.

longlegs (noun)	stilt plover (noun)
long-legged three-toed black-and-white wading bird of inland ponds and marshes or brackish lagoons	long-legged three-toed black-and-white wading bird of inland ponds and marshes or brackish lagoons