With the exception of Ramphomicron microrhynchus, this is the least species of the genus with which I am acquainted; it is most nearly allied to R. heteropogon, but may at once be distinguished from that species by its red crown and by the nearly uniform hue of the gorget or throat-mark.
A single specimen only graces my collection; the discovery of which is due to Mr. Bridges, who brought this and numerous other treasures from the interior of Bolivia. The only other species of Ramphomicron with a red crown is the beautiful R. Herranc; but with this bird the R. ruficeps can never be confounded.
Mr. Bridges informed me that the specimen above alluded to was found by him at Unduave, in the Yungas of La Paz.
Crown deep rusty red; throat lustrous bronzy green; upper surface green; under surface brownish green; tail pure bronze; wings purplish brown; bill black.
Featuring all 422 illustrated species from John Gould’s A Monograph of the Trochilidæ, or Family of Humming-Birds arranged by color.
Humming-Birds
