buzzard vs turkey buzzard

buzzard and turkey buzzard both are nouns.

Word	Noun	Adjective	Verb	Adverb
buzzard	Yes	No	No	No
turkey buzzard	Yes	No	No	No

As nouns, buzzard and turkey buzzard are synonyms defined as:

buzzard and turkey buzzard: a New World vulture that is common in South America and Central America and the southern United States

Other synonyms of buzzard include Cathartes aura, turkey vulture.

buzzard (noun)	turkey buzzard (noun)
a New World vulture that is common in South America and Central America and the southern United States	a New World vulture that is common in South America and Central America and the southern United States
the common European short-winged hawk