962,
MCT 3156; [Female], October 28, 1962, MCT 3173; [Male], November 2,
1962, MCT 3204; [Male], November 4, 1962, MCT 3209; [Male] testis 5 x 4
mm., November 4, 1962, MCT 3210; [Male] testis 2 x 1 mm., November 6,
1962, MCT 3214; [Female], November 11, 1962, MCT 3252. Kalabakan:
[Female], November 15, 1962, MCT 3278; [Female] 2 eggs in oviduct, ovary
enlarged, brood patch, November 15, 1962, MCT 3279; [Female] brood
patch, two collapsed follicles, November 15, 1962, MCT 3280; [Male]
testis 7 x 6 mm., November 15, 1962, MCT 3281; [Female] brood patch, egg
in oviduct, largest ovum 6 mm., November 15, 1962, MCT 3286; [Male]
testis 7 x 6 mm., November 16, 1962, MCT 3290; [Male] testis 3 x 2 mm.,
November 16, 1962, MCT 3294; [Female], November 16, 1962, MCT 3295;
[Male] testis 6 x 3 mm., November 17, 1962, MCT 3297; [Male] testis 5 x
5 mm., November 17, 1962, MCT 3298; [Female], November 17, 1962, MCT
3299. 5.5 mi. SW Tenom: [Female], December 26, 1962, MCT 3538. Gum-Gum:
[Male], October 4, 1963, ADG 290; [Female], October 5, 1963, ADG 294;
[Female], October 5, 1963, ADG 295.

This was the most common of all the spiderhunters, and was found at
all localities. It was readily taken in mist nets. Unlike most
birds, these spiderhunters become quite agitated in nets, and
within a few minutes usually strangle themselves.

From October 16 through November 11, I took several specimens 12
miles north of Kalabakan, but only one in breeding condition. On
November 15, I moved 12 miles back to Kalabakan from an elevation
of 600 feet to an elevation of 50 feet. As can be seen from the
specimen-data, nearly all the females then collected either had
nests with eggs or were approaching oviposition. The specimens were
all taken in nets in an area approximately 200 feet square. On
November 20 at the Brantian Estate a bird sitting on a branch six
inches up in secondary forest jumped down to the ground and fed on
unknown material.

_=Arachnothera crassirostris=_ (Reichenbach): Thick-billed
Spiderhunter.--_Specimen_, 1: Cocoa Research Station: [Female], 14.8
gm., August 9, 1962, MCT 2746.

This spiderhunter was recorded on the basis of one specimen and one
sight record. One seen in secondary forest would dart out from its
perch on a limb, hover near the end of a branch, and then return to
its perch. No flowers were visible and I assumed that the bird wa