Slaty-backed Nightingale-Thrush (Catharus fuscater) [XC512813]
by Patricio Mena Valenzuela from Utuana NR, Loja, Ecuador (song)
Slaty-backed Nightingale-Thrush (Catharus fuscater) [XC274447]
by Peter Boesman from Tapant\u00ed NP, Cartago, Costa Rica (song)
Subspecies
Proposed taxon fumosus apparently based on hybrid between present species and Black-headed Nightingale-Thrush (Catharus mexicanus). Racial affiliation of population recently discovered in central Andes of Colombia not determined.
The following 7 subspecies are recognised:
hellmayri von Berlepsch, 1902 - Costa Rica and western Panama.
mirabilis Nelson, 1912 - Eastern Panama.
fuscater (Lafresnaye, 1845) - Eastern Panama (eastern Darién), Colombia south to western Ecuador, and western Venezuela.
sanctaemartae Ridgway, 1904 - Santa Marta Mts, in northern Colombia.
opertaneus Wetmore, 1955 - Western Colombia (northern part of western Andes).
caniceps Chapman, 1924 - North-western and central Peru, probably also south-western Ecuador.
mentalis Sclater, PL & Salvin, 1876 - South-eastern Peru and north-western Bolivia.