Alcedo euryzona euryzona Temminck: Blue-banded Kingfisher.—Specimens, 4: Cocoa Research Station: ♂, September 7, 1962, MCT 2884. 12 mi. N Kalabakan: ♂, October 19, 1962, MCT 3091; ♀, October 20, 1962, MCT 3099; ♂, October 20, 1962, MCT 3101.
This species was fairly common along streams deep in the primary forest at Quoin Hill.
Ceyx erithacus ssp. (Linnaeus): Forest Kingfisher.—Specimens, 4: Cocoa Research Station: ♂, 13.2 gm., September 14, 1962, MCT 2924; 12 mi. N Kalabakan: ♂, October 18, 1962, MCT 3075; ♀, October 26, 1962, MCT 3163. Oil Palm Research Station: ♂, September 5, 1963, ADG 273.
All specimens taken showed characters intermediate between those of the subspecies C. e. motleyi and C. e. rufidorsus. Voous (1951) states that, in all the Malaysian region, the greatest number of hybrids between these two subspecies occurred in Borneo and, further, that he could find hybrid specimens showing practically all imaginable character combinations. My specimens also showed these intermediate tendencies and I am unable at present to allocate the specimens to subspecies.
Merops viridis viridis Linnaeus: Blue-throated Bee-eater.—Specimens, 9: Mt. Rumas: ♂, March 5, 1963, ADG 9; ♂, March 5, 1963, ADG 10; ♀, March 6, 1963, ADG 20; ♂, March 7, 1963, ADG 21; ♀, March 7, 1963, ADG 22; ♂, March 7, 1963, ADG 23. Telipok: ♀, March 24, 1963; ADG 39. Pintasan: ♂, October 22, 1963, ADG 302; ♀, October 12, 1963, ADG 303.
These specimens were all taken in March and October and seem to support Smythies' (1957:664) idea that they arrive with the northeast monsoon (October to March) and are absent the rest of the year.
Nyctiornis amicta (Temminck): Red-bearded Bee-eater.—Specimen, 1: Cocoa Research Station: ♂, September 27, 1962, molting, MCT 2970.
The specimen was taken along a stream in the deep primary forest, where it was sitting on a dead twig overlooking the stream. The call note was much like that of a scolding squirrel. This was the only time this species was observed in the Quoin Hill area.
Eurystomus orientalis cyanicollis Vieillot: Broad-billed Roller.—Specimens, 4: Cocoa Research Station: ♂ testis 2 × 1 mm., 157.4 gm., heavy molt, July 3, 1962, MCT 2585; ♂ testis 2 × 1 mm., 152.0 gm., heavy molt, July 21, 1962, MCT 2633; ♀, 146.4 gm., heavy molt, July 21, 1962, MCT 2634; ♀, April 29, 1963, ADG 83.
At the Cocoa Research Station this common bird perched in dead trees in the cocoa. On several evenings in September, an individual was seen catching insects in flight at dusk, repeatedly returning to a stump between forays. This continued until it was so dark that I could barely discern the bird.