regulus : Idioms & Phrases
genus regulus
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noun a genus of birds of the family Sylviidae including kinglets
Regulus.
WordNet
regulus calendula
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noun American kinglet with a notable song and in the male a red crown patch
ruby-crowned kinglet; ruby-crowned wren.
WordNet
regulus regulus
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noun European kinglet with a black-bordered yellow crown patch
goldcrest; golden-crested kinglet.
WordNet
regulus satrata
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noun American golden-crested kinglet
gold-crowned kinglet.
