roughleg vs rough-legged hawk

roughleg and rough-legged hawk both are nouns.

Word	Noun	Adjective	Verb	Adverb
roughleg	Yes	No	No	No
rough-legged hawk	Yes	No	No	No

As nouns, roughleg and rough-legged hawk are synonyms defined as:

roughleg and rough-legged hawk: large hawk of the Northern Hemisphere that feeds chiefly on small rodents and is beneficial to farmers

Other synonyms of roughleg include Buteo lagopus.

roughleg (noun)	rough-legged hawk (noun)
large hawk of the Northern Hemisphere that feeds chiefly on small rodents and is beneficial to farmers	large hawk of the Northern Hemisphere that feeds chiefly on small rodents and is beneficial to farmers