warbler
n. countable C2 Proficiency US //ˈwɔɹbɫɝ// UK //wˈɔːblɐ// war·bler
n. a small bird that sings a lot and moves its tail up and down. You usually see them in gardens or forests during the spring and summer.
n. any of various small, insect-eating birds of the family Parulidae, characterized by a slender body, long tail, and a tendency to flick the tail while singing.
A yellow warbler is singing in the trees.
During the spring migration, several species of warbler pass through the local park before continuing their journey north.
The ornithologist spent the entire morning identifying the subtle differences in the songs of various warbler species that had nested in the dense underbrush of the valley.
From warble + -er.