godwit vs shore bird

godwit and shore bird both are nouns.

Word	Noun	Adjective	Verb	Adverb
godwit	Yes	No	No	No
shore bird	Yes	No	No	No

As nouns, shore bird is a hypernym of godwit; that is, shore bird is a word with a broader meaning than godwit:

godwit: large wading bird that resembles a curlew; has a long slightly upturned bill
shore bird: any of numerous wading birds that frequent mostly seashores and estuaries

Other hypernyms of godwit include limicoline bird, shorebird.

godwit (noun)	shore bird (noun)
large wading bird that resembles a curlew; has a long slightly upturned bill	any of numerous wading birds that frequent mostly seashores and estuaries