Rufous-browed Tyrannulet (Phylloscartes superciliaris) [XC168506]
by Jerome Fischer from Fortuna, Antenna Road, Panama (call)
Rufous-browed Tyrannulet (Phylloscartes superciliaris) [XC767383]
by Frank Lambert from Reserva Maycu, Nangaritza, Provincia de Zamora Chinchipe, Ecuador (call)
Subspecies
Was once included in genus Mecocerculus. Vocal similarities and plumage (rufous above lores) suggest that it is possibly a member of the superspecies formed by Rufous-lored Tyrannulet (Phylloscartes flaviventris) and Cinnamon-faced Tyrannulet (Phylloscartes parkeri), perhaps also including Black-fronted Tyrannulet (Phylloscartes nigrifrons), Minas Gerais Tyrannulet (Phylloscartes roquettei) and Bay-ringed Tyrannulet (Phylloscartes sylviolus). Geographical variation is minor. Validity of subspecies impossible to assess, as so few specimens available.
The following 3 subspecies are recognised:
superciliaris (Sclater & Salvin, 1868) - Forested mountains of Costa Rica and western Panama.
palloris (Griscom, 1935) - Eastern Panama (Darién).
griseocapillus Phelps & Phelps Jr, 1952 - Very locally in north-western Venezuela (Sierra de Perijá), Colombia (eastern Andes, possibly also Chocó region) and eastern slopes in south-eastern Ecuador (Cordillera de Cutucú, Cordillera del Condor).
BirdLife International Species Factsheet