Indigo Bunting

Passerina cyanea

Named for its color twice: 'indigo' in English and cyanea, Greek for 'dark blue,' in its scientific name. Yet it carries no blue pigment at all.

Passerina means 'sparrow-like'; cyanea is Greek for 'dark blue.' 'Indigo' means 'Indian,' for a dye from India, and Isaac Newton named it one of the seven colors of the spectrum.