Macronous mindanensis montanus Mearns,
Proc. Biol. Soc. Wash. (1905), 18, 4.
Macronus montanus McGregor and Worcester, Hand-List (1906), 82.
Tah-gó-saa or tah-go-say'-ahn, Bagobo; tar-man'-op, Moros of
Pantar and Lake Lanao.
Mindanao (Mearns).
"Adult male and female.--Similar to Macronous mindanensis mindanensis,
but very much darker with heavier markings throughout; the dark
shaft-streaks are increased in area and intensity; the blackish
feathering of the upper side of the head occupies more of the nape;
and the back and rump are prout's brown instead of raw umber; the
under parts are dark from the throat backward, the flanks being dark
isabella instead of clay-color. This mountain form (from Pantar at
610 meters and Mount Apo at 1,220 meters) is slightly smaller than
the subspecies mindanensis. It is still farther removed from Macronous
striaticeps Sharpe from the Island of Basilan." (Mearns.)