vireo

noun2

1. •
   Any of a number of small insectivorous passerine birds, of the genus Vireo, that have grey-green plumage.

   • This is our only vireo that has two white wing bars, yellow spectacles, and yellow sides. — 2012
2. •
   Any bird of the family Vireonidae, which includes vireos, shrike-vireos, greenlets, and peppershrikes.

   • Family Vireonidae Vireos The vireos are slim grayish green birds that stay high up in the trees most of the time. — 1950