Attributes / relations provided by
♦ 1Nathan P. Myhrvold, Elita Baldridge, Benjamin Chan, Dhileep Sivam, Daniel L. Freeman, and S. K. Morgan Ernest. 2015. An amniote life-history database to perform comparative analyses with birds, mammals, and reptiles. Ecology 96:3109
♦ 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
♦ 3Earhart, CM and Johnson, NK 1970.
Size dimorphism and food habits of North American owls Condor 72: 251-264
♦ 4del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.).
Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona.
♦ 5de Magalhaes, J. P., and Costa, J. (2009)
A database of vertebrate longevity records and their relation to other life-history traits. Journal of Evolutionary Biology 22(8):1770-1774
♦ 6Buechley ER, Santangeli A, Girardello M, et al.
Global raptor research and conservation priorities: Tropical raptors fall prey to knowledge gaps. Divers Distrib. 2019;25:856–869. https://doi.org/10.1111/ddi.12901