Russet-crowned Warbler (Myiothlypis coronata) [XC433210]
by Fabrice Schmitt from Santuario, Risaralda, Distrito de manejo integrado Planes de San Rafael, Colombia (song)
Russet-crowned Warbler (Myiothlypis coronata) [XC261103]
by Patricio Mena Valenzuela from Napo: 'Caba\u00f1as San Isidro', 1-2 km SW Cosanga, Ecuador (call, calls)
Subspecies
May form a superspecies with White-lored Warbler (Myiothlypis conspicillata). Has in the past been considered conspecific with White-lored Warbler (Myiothlypis conspicillata) and Grey-throated Warbler (Myiothlypis cinereicollis), with Grey-throated Warbler (Myiothlypis cinereicollis) being closely related and possibly partly sympatric with present species, but separated altitudinally.
Subspecies form two groups, differing in underpart coloration, the "white-bellied group", with underparts uniformly greyish-white (castaneiceps and chapmani), and "yellow-bellied group", with yellow underparts (all other subspecies). It has been suggested that these groups may constitute two separate species.
The following 8 subspecies are recognised:
regulus (Todd, 1929) - Andes in Colombia (south to Cauca) and north-western Venezuela.
elata Todd, 1929 - Western Andes in south-western Colombia (Nariņo) and northern Ecuador.
orientalis (Chapman, 1924) - Eastern slope of eastern Andes in Ecuador (Pichincha south to Chimborazo).
castaneiceps (Sclater, PL & Salvin, 1877) - Western slope of western Andes in south-western Ecuador and north-western Peru.
chapmani (Todd, 1929) - Eastern slope of western Andes in north-western Peru (Cajamarca).
inaequalis (Zimmer, JT, 1949) - Central Andes in northern Peru (Amazonas and San Martí.
coronata (Tschudi, 1844) - Eastern Andes from central Peru south to western Bolivia (La Paz).
notia Todd, 1929 - Eastern Andes in central Bolivia (Cochabamba).
BirdLife International Species Factsheet