starthroat

from The Century Dictionary.

• noun A humming-bird of the genus Heliomaster, having the throat spangled with the scales of the gorget, like many other hummers.

from the GNU version of the Collaborative International Dictionary of English.

• noun (Zoöl.) Any humming bird of the genus Heliomaster. The feathers of the throat have a brilliant metallic luster.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun Any hummingbird of the genus Heliomaster, with throat feathers having a brilliant metallic lustre.