Mountain Shrike (Lanius validirostris) [XC422822]
by Jelle Scharringa from Sto Thomas Baguio Luzon, Philippines (call)
Mountain Shrike (Lanius validirostris) [XC345744]
by Brendan Sloan from Puerto Galera, Oriental Mindoro, MIMAROPA, Philippines (alarm call)
Subspecies
Possibly part of the superspecies formed by Long-tailed Shrike (Lanius schach) and Grey-backed Shrike (Lanius tephronotus), being very similar to Grey-backed Shrike (Lanius tephronotus), especially in plumage.
Proposed subspecies quartus (from Duminagat, Mt Malindang, on Mindanao) considered synonymous with hachisuka.
The following 3 subspecies are recognised:
validirostris Ogilvie-Grant, 1894 - Northern Luzon (Cordillera
and northern Sierra Madre), in northern Philippines.
tertius Salomonsen, 1953 - Northern Mindoro (Mt Halcon and Mt
Dulungan), in north-central Philippines.
hachisuka Ripley, 1949 - Mindanao (Mt Malindang,
mountains of Misamis Oriental, Mt Kitanglad and Civolig, Mt Apo), in
southern Philippines.