益鸟

益鳥
yìniǎo
beneficial bird (esp. one that preys on insect pests or mice)

CEDICT

beneficial bird; birds beneficial to humans

Wiktionary

啄食害虫，有益农作物的鸟。如燕、云雀、杜鹃等。

重編國語辭典

Entry Composition

1 益 yì
  1. benefit
  2. profit
  3. advantage
  4. beneficial
  5. to increase
  6. to add
  7. all the more
2 鸟 niǎo
  1. bird
  2. "bird" radical in Chinese characters (Kangxi radical 196)
  3. (dialect) to pay attention to
  4. (intensifier) damned
  5. goddamn

classifiers: 隻, 群