n: [Male] testis 5 x 3
mm., 20.4 gm., July 23, 1962, MCT 2647; [Male] testis 2 x 1 mm., 20.0
gm., July 24, 1962, MCT 2656; [Male] testis 1 x 1 mm., 20.5 gm., July
24, 1962, MCT 2657; [Male], 20.4 gm., July 27, 1962, MCT 2669. 12 mi. N
Kalabakan: [Male], October 10, 1962, MCT 2994; [Male] testis 5 x 3 mm.,
October 12, 1962, MCT 3016; [Female], October 12, 1962, MCT 3017;
[Male], October 13, 1962, MCT 3026; [Female], October 13, 1962, MCT
3028; [Male], October 17, 1962, MCT 3070; [Male], October 19, 1962, MCT
3083; [Male], October 19, 1962, MCT 3084; [Male] testis 5 x 4 mm.,
October 20, 1962, MCT 3108; [Male], October 26, 1962, MCT 3158;
[Female], October 26, 1962, MCT 3159; [Male], November 11, 1962, MCT
3253; [Female], November 11, 1962, MCT 3254. 5.5 mi. SW Tenom: [Male],
December 19, 1962, MCT 3462. Oil Palm Research Station: [Female], August
28, 1963, ADG 265.

This babbler inhabits the understory of primary forest, and
occasionally is seen in secondary forest scrub. A specimen was
taken at 4,000 feet elevation in moss forest near Tenom. The
breeding season is seemingly in June and July but there is
indication of gonadal activity in males in October (MCT 3108). On
October 15, 1962, I observed an individual feeding on the rough
bark of a large dipterocarp. The bird was clinging to the bark much
as a nuthatch would, hopping along the vertical trunk upside down,
laterally and straight up. Other birds of the species were feeding
close by in small trees about 20 feet tall.

_=Pomatorhinus montanus borneensis=_ Cabanis: Chestnut-backed Scimitar
Babbler.--_Specimens_, 3: Cocoa Research Station: [Male] testis 5 x 2
mm., 33.1 gm., July 23, 1962, MCT 2643; [Male] testis 2 x 1 mm., 28.2
gm., July 24, 1962, MCT 2655. 5.5 mi. SW Tenom: [Male], December 22,
1962, MCT 3496.

This bird of the understory in primary forest was seen in only one
other situation, 12 miles north of Kalabakan it was feeding in a
clearing near our camp.

_=Ptilocichla leucogrammica=_ (Bonaparte): Bornean
Wren-babbler.--_Specimens_, 3: Ulu Balung Cocoa Estate: [Male], July 17,
1963, ADG 207: [Female] one egg in oviduct, July 19, 1963, ADG 211. Oil
Palm Research Station: [Female] egg in oviduct, August 13, 1963, ADG
230.

Garcia netted three specimens in primary forest. This bird is known
from Borneo only from a few specimens (Smythies, 1960:410). In
North Borneo, it has be