Paramo Ground Tyrant (Muscisaxicola alpinus) [XC260953]
by id from Azuay: Cajas NP (high), Ecuador (call, calls)
Paramo Ground Tyrant (Muscisaxicola alpinus) [XC53710]
by Bernabe Lopez-Lanus from Laguna La Cubierta (origen Quebrada San Pacho), PN Los Nevados, Risaralda, Colombia (call, persecution call)
Subspecies
Muscisaxicola alpina (Sibley and Monroe 1990, 1993) has been split into Plain-capped Ground-tyrant (Muscisaxicola alpinus) and Taczanowski's Ground-tyrant (Muscisaxicola griseus) following SACC (2005). Gender agreement of species names follows David and Gosselin (2002b).
Formerly considered conspecific with Taczanowski's Ground-tyrant (Muscisaxicola griseus) and Cinereous Ground-tyrant (Muscisaxicola cinereus) by some authors. Recent molecular work supports treatment as distinct species. Subspecies weakly differentiated.
The following 3 subspecies are recognised:
columbianus Chapman, 1912 - North-central Andes of Colombia.
quesadae Meyer de Schauensee, 1942 - Eastern Andes of Colombia (Boyacá, Cundinamarca).