Attributes / relations provided by
♦ ¹Plant–hummingbird interactions in the West Indies: floral specialisation gradients associated with environment and hummingbird size, Bo Dalsgaard, Ana M. Martín González, Jens M. Olesen, Jeff Ollerton, Allan Timmermann, Laila H. Andersen, Adrianne G. Tossas, Oecologia Volume 159, Number 4, 757-766 (2009)
♦ ²del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona.