Word Study
junco
CIDE DICTIONARY
junco, n.
Any bird of the genus Junco , which includes several species of North American finches; -- called also snowbird , or blue snowbird . [1913 Webster]
OXFORD DICTIONARY
junco, n. (pl. -os or -oes) any small American finch of the genus Junco.
Etymology
Sp. f. L juncus rush plant
For further exploring for "junco" in Webster Dictionary Online