Small, compact, short-billed and short-tailed hummingbird with reddish tail. Male all glittering coppery green; female coppery green above and gray below with dark cheek and white eyeline. Occurs in shrubby and second growth forest borders in montane regions. Often perched alone near small flowers at mid-height. No similar species in its very limited range in extreme western Venezuela (Sierra de Perijá) and northeastern Colombia.