godwit vs shorebird

godwit and shorebird both are nouns.

Word	Noun	Adjective	Verb	Adverb
godwit	Yes	No	No	No
shorebird	Yes	No	No	No

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

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

Other hypernyms of godwit include limicoline bird, shore bird.

godwit (noun)	shorebird (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