An incidence of duetting between an Abbott's Babbler and a Magpie Robin

Smythies, B.E., 1981. The Birds of Borneo, third ed. The Sabah Society and the Malayan Nature Society, Kuala Lumpur.

Stuebing, R., 1983. The Tuneful Babblers. Malayan Naturalist 36(3): 10-14.