vireos

vir*eo

noun

{bc}any of various small insectivorous American oscine birds (family Vireonidae, especially genus {it}Vireo{/it}) that are chiefly olivaceous and grayish in color

red-eyed vireo

noun

{bc}a North American vireo ({it}Vireo olivaceus{/it}) having an olive-green back, white underparts, and red irises