wheatear vs thrush

wheatear and thrush both are nouns.

Word	Noun	Adjective	Verb	Adverb
wheatear	Yes	No	No	No
thrush	Yes	No	No	No

As nouns, thrush is a hypernym of wheatear; that is, thrush is a word with a broader meaning than wheatear:

wheatear: small songbird of northern America and Eurasia having a distinctive white rump
thrush: songbirds characteristically having brownish upper plumage with a spotted breast

wheatear (noun)	thrush (noun)
small songbird of northern America and Eurasia having a distinctive white rump	songbirds characteristically having brownish upper plumage with a spotted breast
	a woman who sings popular songs
	candidiasis of the oral cavity; seen mostly in infants or debilitated adults