Attributes / relations provided by
♦ ¹del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona.
♦ ²The sweet jelly of Combretum lanceolatum flowers (Combretaceae): a cornucopia resource for bird pollinators in the Pantanal, western Brazil, M. Sazima, S. Vogel, A. L. do Prado, D. M. de Oliveira, G. Franz, and I. Sazima, Plant Syst. Evol. 227: 195-208 (2001)