This specimen was probably taken in the paddy around the Agricultural Research Centre, where I saw Chestnut Bitterns in January 1963.
Leptoptilos javanicus (Horsfield): Lesser Adjutant Stork.—Specimen, 1: Karindingen Island: ♂ testis small, November 24, 1962, MCT 3311.
My first observation of this species was at Karindingen Island on August 17, when approximately 100 birds were seen feeding on the coral sand and reefs. I saw them also within a mile of Semporna along the ship channel, usually in the vicinity of fish traps. On August 31 two birds flew high overhead at Quoin Hill, proceeding in the direction of Cowie Harbor. On November 24, large numbers at Karindingen Island were sitting in mangroves and feeding on the reefs around the island. Two birds were caught by the rising tide while feeding on the reef and were unable to take off. One of these was shot in approximately six to seven feet of water; its feathers were completely waterlogged. Interestingly the flaky skin of the crown had blue-green algae growing on it. These birds were heard calling many times on the reef and in the mangroves; the call is much like the deep growl of a dog.
Sims, Banks, and Harrison have found the storks common in this area (Smythies, 1957:569). Although I could find no evidence of it, possibly Karindingen Island is a nesting locality.
Anas querquedula Linnaeus: Garganey.—Specimen, 1: Kg. Banjar: sex? November 13, 1963, ADG 329.
This teal obtained by Garcia is our only record of any duck from North Borneo.
Haliastur indus (Boddaert): Brahminy Kite.—This common resident of the Cocoa Research Station was observed almost daily while I was in the field. It seemed to prefer the cleared areas replanted to cocoa and oil palm and was common also at Tawau, Semporna, and Karindingen Island.
Accipiter trivirgatus microstictus Mayr: Crested Goshawk.—Specimens, 2: Pintasan Agriculture Station: ♂, October 17, 1963, ADG 314. Cocoa Research Station: ♂, April 30, 1963, ADG 89.
Spizaetus cirrhatus limnaetus (Horsfield): Changeable Hawk-eagle.—Specimen, 1: Tiger Estate: ♂, April 28, 1963, ADG 74 (Specimen in black phase).
Hieraetus kienerii formosus (E. Geoffroy): Rufous-bellied Hawk-eagle.—Specimens, 2: Cocoa Research Station: ♀ imm., July 10, 1962, MCT 2615. Tiger Estate: ♀, July 13, 1962, MCT 2621.
The presence of an immature bird of this species in North Borneo lends support to the suggestion of Smythies (1957:580) that this species breeds in Borneo.