534 MANUAL OF PHILIPPINE BIRDS. 
514. MIXORNIS CAGAYANENSIS Guillemard. 
CAGAYAN SULU TIT BABBLER. 
Mixornis cagayanensis Gurren, Proc. Zool. Soe. (1885), 419, pl. 25; 
SHARPE, Hand-List (1903), 4, 53; McoGrecor and WorcESTER, Hand- 
List (1906), 82. 
Cagayan Sulu (@uillemard). 
Male.— “Above grayish olive; the forehead grayish, with black shafts 
to the feathers, the occipital region with a tinge of chesnut; feathers 
round the eye and in the parotic region ashy ; throat and chin pure white, 
broadly striped with black; breast pale yellow, also broadly striped, 
shading off below into the yellowish olive-gray of the crissum and under 
tail-coverts ; thighs with a slight reddish tint; under wing-coverts white; 
wings chestnut; tail brown with traces of dark barring. Iris pale 
yellow; bill and feet lead-colored. Length, about 145; wing, 64; tail, 
60; bill from gape, 18; tarsus, 20. 
“This species, which was common in low bushes in the more open 
situations in the island, is at once distinguishable from M. bornensis by 
the upper surface being of an ashy olive-brown instead of chestnut. It 
has a loud note of alarm, is very restless in its movements, and apparently 
rarely flies far off the ground.” (Guillemard.) 
Genus MACRONOUS Jardine and Selby, 1835. 
Rictal bristles about as long as bill from nostril; nasal opening oval 
and not protected by a flap; culmen from base less than tarsus; long 
feathers of the back reaching to or beyond the tips of tail-coverts, their 
shafts stiff and usually white; feathers on sides of body long, decomposed, 
and hair-like; most of the plumage loose and decomposed. Macronous 
resembles Mixornis in its long dorsal feathers, but differs from the latter 
in having the shafts of these feathers thick and stiff. Zosterornis differs 
from both of these genera in having shorter dorsal plumes and in having 
a flap above the nasal opening. 
Species. 
a. Entire top of head black with conspicuous white shaft-stripes. 
b*. Throat and breast white, edges of the feathers ocherous buff or brown. 
striaticeps (p. 535) 
b*. Throat and breast washed with ocherous brown or sparrow-brown. 
c’. Slightly larger; lighter in color and with lighter markings. 
mindanensis (p. 535) 
e?, Slightly smaller; much darker and with heavier markings throughout. 
montanus (p. 536) 
a*, Entire top of head brown with a few narrow shaft-stripes of white. 
kettlewelli (p. 537) 
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