avocet vs shorebird

avocet and shorebird both are nouns.

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

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

avocet: long-legged web-footed black-and-white shorebird with slender upward-curving bill
shorebird: any of numerous wading birds that frequent mostly seashores and estuaries

Other hypernyms of avocet include limicoline bird, shore bird.

avocet (noun)	shorebird (noun)
long-legged web-footed black-and-white shorebird with slender upward-curving bill	any of numerous wading birds that frequent mostly seashores and estuaries