gnatcatcher
/ˈnætˌkætʃə(r)/noun
1- a tiny grey-backed New World songbird, with a long tail that is often cocked蚋莺。
1.1
- Genus Polioptila, family Polioptilidae (or Sylviidae): several species.蚋莺属, 蚋莺科（或莺科）, 数种。