scrub bird vs scrub-bird

scrub bird and scrub-bird both are nouns.

Word	Noun	Adjective	Verb	Adverb
scrub bird	Yes	No	No	No
scrub-bird	Yes	No	No	No

As nouns, scrub bird and scrub-bird are synonyms defined as:

scrub bird and scrub-bird: small fast-running Australian bird resembling a wren and frequenting brush or scrub

Other synonyms of scrub bird include scrubbird.

scrub bird (noun)	scrub-bird (noun)
small fast-running Australian bird resembling a wren and frequenting brush or scrub	small fast-running Australian bird resembling a wren and frequenting brush or scrub