[7] In the revised classification to create monophyletic genera, the wedge-tailed sabrewing was moved to the resurrected genus Pampa by some taxonomic systems.

However, their crown is dull blue rather than bright violet, their underparts have a pale cinnamon wash, and the tips of the outermost tail feathers have a buff wash. Immature birds are similar to the adult female, with a duller crown whose feathers have buff tips.

[6] The wedge-tailed sabrewing is found in Mexico's Yucatán Peninsula and northeastern Chiapas, Belize, and northern Guatemala.

(Note that the map includes the curve-winged sabrewing's separate and more westerly range and excludes Honduras.)

[6][9] The wedge-tailed sabrewing is generally a year-round resident but individuals may move to lower elevations after breeding.

[6] The wedge-tailed sabrewing's foraging strategy and diet are not known in detail; most of the available information applies to the broader two- or three-subspecies models without separation.

[6][9] As is the case for feeding, most of the wedge-tailed sabrewing's breeding phenology has not been detailed separately from that of the curve-winged and long-tailed.

[6] The IUCN follows HBW taxonomy and so does not assess the wedge-tailed sabrewing sensu stricto from the three-subspecies Campylopterus curvipennis.