1) Insect-eating bird 2) Man at home in DC 3) Tiny insect-eating bird 4) Warbler 
The 15-20 species of small passerine birds in the gnatcatcher family occur in North and South America (except far south and high Andean regions). Most species of this mainly tropical and subtropical group are resident, but the blue-gray gnatcatcher of the USA and southern Canada migrates south in winter. They are close relatives of the wrens. Thes...
family name Polioptilidae, any of about 11 species of small birds of the genus Polioptila, treated by many authorities as a subfamily of the Old ...
[n] - very small North and South American warblers
noun very small North American and South American warblers
any tiny insect-eating, New World warbler of the genus Polioptila, having a long, mobile tail and a slender bill.