Macronus kettlewelli Guillemard, Proc. Zool. Soc. (1885), 262,
pl. 18, fig. 2; Sharpe, Hand-List (1903), 4, 54; McGregor and
Worcester, Hand-List (1906), 82.
Bongao (Everett); Sulu (Guillemard, Bourns & Worcester); Tawi Tawi
(Everett, Bourns & Worcester).
Adult.--Differs from the other Philippine species in having the upper
parts nearly uniform brown; shafts whitish; forehead blackish with
narrow white shaft-lines; tail and upper tail-coverts pale chestnut;
under parts nearly uniform pale fawn; sides of throat and body faintly
lined with white; webs of the long dorsal feathers partly white next
to the white shafts. Length, about 140; wing, 63; tail, 70; bill,
15; tarsus, 24. [72]
"Rare in Sulu, very common in Tawi Tawi. Found in the forest
working in tangled herbage, like the other Philippine members of
the genus. Fifteen males average: Length, 150; wing, 64; tail, 61;
culmen, 18.5; tarsus, 23; middle toe with claw, 22. Eight females,
length, 155; wing, 62; tail, 59; culmen, 18; tarsus, 23; middle toe
with claw, 21. Iris green; legs and feet light brown, washed with
yellow; nails light brown; upper mandible black, lower gray." (Bourns
and Worcester MS.)
Genus LEONARDINA Mearns, 1905.
"Bill somewhat depressed, broader than high at base, higher than
broad at anterior border of nostrils, equal in height and breadth at
posterior edge of nostrils; culmen strongly ridged, curved from base;
maxilla with a subterminal notch; nostrils apparently elongate-oval;
distance between anterior angle of nostril and tip of bill equal to
the length of the hind toe without claw; rictal bristles strongly
developed; length of skull equal to that of tarsus; length of tarsus
contained two and one-third times in that of wing; tarsus booted;
hind toe with claw less than half the length of tarsus; wing and
tail about equal; wing rounded, the first primary half as long as
the third; tail moderate, graduated, with feathers somewhat pointed,
and webs not decomposed; plumage full and soft." (Mearns.)