Freckle-breasted Thornbird (Phacellodomus striaticollis) [XC457032]
by Rosendo Manuel Fraga from Reserva Otamendi, Campana, Buenos Aires, Argentina (call)
Freckle-breasted Thornbird (Phacellodomus striaticollis) [XC52167]
by Juan Pablo Culasso from Otamendi, Campana, Buenos Aires, Argentina (song)
Subspecies
Phacellodomus striaticollis (Sibley and Monroe 1990, 1993) has been split into Freckle-breasted Thornbird (Phacellodomus striaticollis) and Spot-breasted Thornbird (Phacellodomus maculipectus) following SACC (2005).
Distinctive subspecies maculipectus often treated, with some justification, as a separate species, differing from nominate in plumage, iris colour, voice, habitat and nest shape. Isolated population in forest fragments in Catamarca and La Rioja (north-western Argentina), differing in having dark chestnut forehead concolorous with rest of crown, and darker, more olivaceous back, represents an undescribed subspecies.
The following 2 subspecies are recognised:
maculipectus (D'Orbigny & Lafresnaye, 1838) - Andes from central Bolivia (Cochabamba) south to north-western Argentina (south to La Rioja). Considered by some authors to be a distinct species, Spot-breasted Thornbird (Phacellodomus maculipectus).
striaticollis (d'Orbigny and Lafresnaye, 1838) - North-eastern Argentina (eastern Formosa south to eastern Córdoba and northern Buenos Aires), south-eastern Brazil (southern from eastern Paraná) and Uruguay.