speculum

Videmus nunc per speculum in nigmate, tunc autem facie ad faciem.

The speculum is gray; bill, bluish with a pale blue band across it about a half inch from the end.

The general color is buff, mottled with brown; wing-coverts and speculum, same as the male.

The lesser scaup, or little blue-bill (Aythya affinis) has a white speculum also, but the sheen of the head and neck is purple.

The Daily Speculum rose to a million a day on the strength of its photographs of bridal-parties alone.