White-tufted Sunbeam (Aglaeactis castelnaudii) [XC10650]
by Huw Lloyd from Manthanay, near Yanahuara, Cuzco, Peru (song)
White-tufted Sunbeam (Aglaeactis castelnaudii) [XC36719]
by id from Yanacocha, Cusco, Peru (call)
Subspecies
Forms a superspecies with Shining Sunbeam (Aglaeactis cupripennis) and possibly with Purple-backed Sunbeam (Aglaeactis aliciae). May be sister-species of Black-hooded Sunbeam (Aglaeactis pamela). Although the morphological variation in the genus might suggest past geneflow between Shining Sunbeam (Aglaeactis cupripennis) and present species, they are nowadays reproductively isolated in the zone of overlap.
The following 2 subspecies are recognised:
regalis Zimmer, JT, 1951 - Andes of Huánuco, Pasco and Junín (central Peru).
castelnaudii (Bourcier & Mulsant, 1848) - Andes of Huancavelica, Ayacucho, Apurímac and Cuzco (south-central Peru).