What intersections, beyond a homogeneous “ethnicity,” may have been present in pre-Hispanic and early colonial Colca? Recent archaeological studies of Colca have investigated complexities at the intersection of ethnicity, status, and gender. In this paper, close re-reading of the 1586 text also finds tensions at the intersections of ethnicity, migration, and language. I pursue these tensions into linguistic data contained in sixteenth-century tribute records, which I use to identify noncontiguous areas of western Colca in which not only Quechua, but also an otherwise undocumented Indigenous language, was spoken. However the speakers of Quechua and the undocumented language related to each other, western Colca was not ethnolinguistically homogeneous. These results underscore the need to approach colonial Latin American texts’ descriptions of Indigenous “ethnicities” with caution.