laughing gull vs pewit

laughing gull and pewit both are nouns.

Word	Noun	Adjective	Verb	Adverb
laughing gull	Yes	No	No	No
pewit	Yes	No	No	No

As nouns, laughing gull and pewit are synonyms defined as:

Other synonyms of laughing gull include blackcap, Larus ridibundus, pewit gull.

laughing gull (noun)	pewit (noun)
small black-headed European gull	large crested Old World plover having wattles and spurs
	small olive-colored woodland flycatchers of eastern North America
	small black-headed European gull