This form, which comprises two species, both natives of Brazil, is remarkable for the bill of the male being different in structure from that of the female.
Grypus nævius
Habitat: South-eastern Brazil
Plate 1 Grypus nævius Saw-billFeaturing all 422 illustrated species from John Gould’s A Monograph of the Trochilidæ, or Family of Humming-Birds arranged by color.