Keywords: SpilornisPallidusKeulemans.jpg Spilornis pallidus Spilornis cheela pallidus Crested Serpent Eagle ssp from the lowlands of northern Borneo Catalogue of the birds in the British Museum Volume 1 1874 Creator John Gerrard Keulemans PD-old-100 Catalogue of the Birds in the British Museum John Gerrard Keulemans Spilornis cheela |