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Jyutping leoi4 niu5
Pinyin léi niǎo

Definitions (CC-CEDICT)
  1. capercaillie (Lagopus, several species)
  2. thunderbird (in native American mythology)
Definitions (Wiktionary)
  1. noun, in native American mythology
    thunderbird
  2. noun, figuratively
    bravely advancing aircraft (undeterred by thunderstorms)
  3. noun
    ptarmigan (several species in Lagopus)