WLarus
WAmerican herring gull
WArmenian gull
WBelcher's gull
WBlack-tailed gull
WCalifornia gull
WCaspian gull
WCommon gull
WEuropean herring gull
WGlaucous gull
WGlaucous-winged gull
WGreat black-backed gull
WHeermann's gull
WHeuglin's gull
WIceland gull
WKelp gull
WKumlien's gull
WLesser black-backed gull
WOlrog's gull
WPacific gull
WRing-billed gull
WSlaty-backed gull
WThayer's gull
WVega gull
WWestern gull
WYellow-footed gull
WYellow-legged gull