on
the mountains near Tenom.

No specimen taken showed characters of or tendencies toward _C.
malabaricus suavis_. Perhaps the zone of intergradation on the east
coast is farther south than Darvel Bay, where it was placed by
Smythies (1960:390).

S. D. Ripley (_in_ Peters _et al._, 1964:72) considered _C.
stricklandi_ to be specifically distinct from _C. malabaricus_, and
his opinion is accepted here.

_=Enicurus leschenaulti borneensis=_ Sharpe: White-crowned Forktail.
_Specimens_, 4: 12 mi. N Kalabakan: [Female] imm., October 21, 1962, MCT
3112; [Female] largest ovum 2 mm., October 27, 1962, MCT 3167; [Male],
November 1, 1962, MCT 3195. Gum-Gum: [Female], September 24, 1963, ADG
282.

I saw this species only once in life, along a small, wet-weather
stream. The specimens, however, were all netted in primary forest,
some distance away from any stream.

Judging from measurements, these specimens are _E. l. borneensis_,
although one would expect to find only _E. l. frontalis_ at
elevations of 600 feet. The specimen taken by Garcia at Gum-Gum was
not identified to subspecies.

_=Enicurus ruficapillus=_ Temminck: Chestnut-naped
Forktail.--_Specimens_, 3: 12 mi. N Kalabakan: [Male], October 21, 1962,
MCT 3113; [Male], November 4, 1962, MCT 3207; [Male], November 8, 1962,
MCT 3231.

This bird was common along the upper Apas River at Quoin Hill. All
specimens were taken in nets stretched across streams.

_=Zoothera interpres interpres=_ (Temminck): Chestnut-headed Ground
Thrush.--_Specimens_, 9: 12 mi. N Kalabakan: [Female], October 28, 1962,
MCT 3171; [Female], October 24, 1962, MCT 3138. Kalabakan: [Female],
November 17, 1962, MCT 3300. Cocoa Research Station: [Female] imm., June
10, 1963, ADG 120; [Male], June 12, 1963, ADG 130; [Female] imm., June
15, 1963, ADG 141. Oil Palm Research Station: [Male], August 15, 1963,
ADG 233; [Male], August 9, 1963, ADG 217; [Male], August 27, 1963, ADG
261.

The many specimens of this species taken indicate the effectiveness
of mist nets in collecting birds in tropical forest. Although
Smythies (1960:398) considered this bird to be rare in Borneo, I
think that it is merely shy and retiring. We never saw the species
in the field and the specimens were all netted. The habitat was in
primary forest, except for that of MCT 3300, which was taken in
dense secondar