White-throated Toucanet (Aulacorhynchus albivitta) [XC257998]
by John V. Moore from Napo: 'Caba\u00f1as San Isidro', 1-2 km SW Cosanga, Ecuador (song)
White-throated Toucanet (Aulacorhynchus albivitta) [XC219389]
by Joe Klaiber from El Morro road, Merida, Venezuela (song)
Subspecies
Aulacorhynchus prasinus (Sibley and Monroe 1990, 1993) was split into Emerald Toucanet (Aulacorhynchus prasinus), Wagler's Toucanet (Aulacorhynchus wagleri), Blue-throated Toucanet (Aulacorhynchus caeruleogularis), Violet-throated Toucanet (Aulacorhynchus cognatus), Northern Andean Toucanet (Aulacorhynchus lautus), Greyish-throated Toucanet (Aulacorhynchus albivitta) and Black-throated Toucanet (Aulacorhynchus atrogularis) by Navarro et al. (2001), on the basis mainly of differences in bill pattern and throat colour, but this treatment is not followed by SACC (2005), or the BirdLife Taxonomic Working Group as it is considered premature.
Considered by some authors to be a subspecies of Emerald Toucanet (Aulacorhynchus prasinus).
The following 7 subspecies are recognised:
lautus Bangs, 1898 - Santa Marta Mountains (north-eastern Colombia). Considered by some authors to be a distinct species, Northern Andean Toucanet (Aulacorhynchus lautus).
griseigularis Chapman, 1915 - Northern part of western Andes and western slope of central Andes of Colombia. Considered by some authors to be a subspecies of Emerald Toucanet (Aulacorhynchus prasinus).
phaeolaemus Gould, 1874 - Western slope of western Andes in western Colombia, north of Patia Canyon. Considered by some authors to be a subspecies of Emerald Toucanet (Aulacorhynchus prasinus).
albivitta (Boissonneau, 1840) - Colombia, western Venezuela, eastern Ecuador. Considered by some authors to be a subspecies of Emerald Toucanet (Aulacorhynchus prasinus).
cyanolaemus (Gould, 1866) - Eastern Andean slope of southern Ecuador to northern Peru (La Libertad, Amazonas). Considered by some authors to be a distinct species, Black-billed Toucanet (Aulacorhynchus cyanolaemus).
atrogularis (Sturm & Sturm, 1841) - Central Ecuador to western Bolivia. Considered by some authors to be a distinct species, Black-throated Toucanet (Aulacorhynchus atrogularis).
dimidiatus (Ridgway, 1886) - Hills and lowlands from eastern Peru to western Brazil (Acre) and northern Bolivia (Pando). Considered by some authors to be a subspecies of Black-throated Toucanet (Aulacorhynchus atrogularis). Considered by some authors to be a subspecies of Emerald Toucanet (Aulacorhynchus prasinus).
BirdLife International Species Factsheet