Definition of warbler
- 1any of a number of small insectivorous songbirds that typically have a warbling song:
- an Old World bird of the family Sylviidae, which includes the blackcap, whitethroat, and chiffchaff. (also wood warbler)North American a New World bird of the family Parulidae. Australian/NZ an Australasian bird of the family Acanthizidae.