vireo

/ˌvɪriˈoʊ/

Other forms: vireos

Definitions of vireo

1. noun

   any of various small insectivorous American birds chiefly olive-grey in color
   types:

   Vireo olivaceous, red-eyed vireo

   of northern North America having red irises and an olive-grey body with white underparts

   Vireo solitarius, solitary vireo

   of eastern North America having a bluish-grey head and mostly green body

   Vireo solitarius solitarius, blue-headed vireo

   common vireo of northeastern North America with bluish slaty-grey head

   type of:

   oscine, oscine bird

   passerine bird having specialized vocal apparatus