Attributes / relations provided by
♦ 1Galbraith, ICJ & Galbraith, EH 1962. Land
birds of Guadalcanal and the San Cristoval Group, Eastern Solomon Islands. Bulletin of the British Museum (Natural History) Zoology 9, 1-86
♦ 2Hamish Wilman, Jonathan Belmaker, Jennifer Simpson, Carolina de la Rosa, Marcelo M. Rivadeneira, and Walter Jetz. 2014.
EltonTraits 1.0: Species-level foraging attributes of the world's birds and mammals. Ecology 95:2027
♦ 3del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.).
Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona.