pipit vs meadow pipit

pipit and meadow pipit both are nouns.

Word	Noun	Adjective	Verb	Adverb
pipit	Yes	No	No	No
meadow pipit	Yes	No	No	No

As nouns, meadow pipit is a hyponym of pipit; that is, meadow pipit is a word with a more specific, narrower meaning than pipit:

pipit: a songbird that lives mainly on the ground in open country; has streaky brown plumage
meadow pipit: a common pipit that is brown above and white below; widely distributed in northern and central Europe and in Asia

Other hyponyms of pipit include Anthus pratensis.

pipit (noun)	meadow pipit (noun)
a songbird that lives mainly on the ground in open country; has streaky brown plumage	a common pipit that is brown above and white below; widely distributed in northern and central Europe and in Asia