This was the most common tailorbird in the Quoin Hill area. Indications were that the species was also breeding (see O. sericeus). Besides the above localities, I observed it 12 miles north of Kalabakan. A male was heard singing on September 11, 1962; the song was simple and on an ascending scale. The specimen taken near Tenom was growing new tail feathers.
Rhipidura perlata S. Müller: Spotted Fantail Flycatcher.—Specimens, 19: Cocoa Research Station: ♀ largest ova 2 mm., July 11, 1962, MCT 2618; ♂ testis 6 × 5 mm., 15.1 gm., July 23, 1962, MCT 2645; ♀, 13.2 gm., August 13, 1962, MCT 2776; ♀, 12.4 gm., August 20, 1962, MCT 2785; ♂, June 12, 1963, ADG 129. 12 mi. N Kalabakan: ♂, October 13, 1962, MCT 3021; ♂, October 16, 1962, MCT 3056; ♀, October 16, 1962, MCT 3057; ♂, October 16, 1962, MCT 3111; ♀, October 24, 1962, MCT 3141; ♂, October 24, 1962, MCT 3146; ♂, October 24, 1962, MCT 3148; sex?, October 26, 1962, MCT 3165; ♂, October 27, 1962, MCT 3168; ♂, October 27, 1962, MCT 3169; sex?, October 30, 1962, MCT 3197. Ulu Balung Cocoa Estate: ♀, July 13, 1963, ADG 198; ♀, July 24, 1963, ADG 214. Oil Palm Research Station: sex?, August 15, 1963, ADG 243.
This bird was one of the most common in the lower story of the primary forest. On July 23, 1962, many males were performing courtship displays at Quoin Hill.
Rhipidura javanica longicauda Wallace: Pied Fan-tailed Flycatcher.—Specimens, 3: Tawau: sex?, September 2, 1962, MCT 2863. Telipok: ♀, February 9, 1963, TM 28. Tuaran: sex?, December 14, 1963, SCFC 19.
On Karindingen Island this was the only passerine bird seen. It was confined to the lowlands and never was seen in localities more than a few feet above sea level.
Culicicapa ceylonensis ceylonensis (Swainson): Gray-headed Flycatcher.—Specimens, 6: Cocoa Research Station: ♂, 8.0 gm., August 4, 1962, MCT 2726; sex?, August 20, 1962, 8.6 gm., MCT 2784. 12 mi. N Kalabakan: ♀?, October 12, 1962, MCT 3018; ♂, October 13, 1962, MCT 3024; ♂ testis 4 × 4 mm., October 28, 1962, MCT 3179. 5.5 mi. SW Tenom: ♂, December 20, 1962, MCT 3483.
This bird of the primary forest and primary-secondary forest ecotone was common at all three principal collecting stations.
Muscicapa sibirica Gmelin: Sooty Flycatcher.—Specimens, 2: Cocoa Research Station: ♂, 10.0 gm., August 25, 1962, MCT 2811; ♂, July 8, 1963, ADG 174.
Several small "brown" flycatchers which could not be assigned to species were observed at Quoin Hill and Kalabakan. The specimen taken by Garcia is of interest as it was taken on a date extremely early for a migrant. Garcia's specimen (not the other) also presented problems of identification and its assignment to this species is tentative.
Muscicapa latirostris latirostris Raffles: Brown Flycatcher.—Specimen, 1: Cocoa Research Station: ♀, September 26, 1962, MCT 2965.