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The Collaborative International Dictionary
Regulus regulus

Goldcrest \Gold"crest`\ (g[=o]ld"kr[e^]st`), n. (Zo["o]l.) The European golden-crested kinglet ( Regulus cristatus, or Regulus regulus); -- called also golden-crested wren, and golden wren. The name is also sometimes applied to the American golden-crested kinglet. See Kinglet.