King·let n.
  1. A little king; a weak or insignificant king.
  2. Zool. Any one of several species of small singing birds of the genus Regulus and family Sylviidæ.
  Note: ☞ The golden-crowned kinglet (Regulus satrapa), and the rubycrowned kinglet (Regulus calendula), are the most common American species. The common English kinglet (Regulus cristatus) is also called golden-crested wren, moonie, and marigold finch. The kinglets are often popularly called wrens, both in America and England.
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  Regulus calendula
       n : American kinglet with a notable song and in the male a red
           crown patch [syn: ruby-crowned kinglet, ruby-crowned
           wren]