Attributes / relations provided by
♦ 1Myers, P., R. Espinosa, C. S. Parr, T. Jones, G. S. Hammond, and T. A. Dewey. 2006. The Animal Diversity Web (online). Accessed February 01, 2010 at
animaldiversity.org♦ 2Nathan 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
♦ 3Partners in Flight Avian Conservation Assessment Database, version 2017. Accessed on January 2018.
♦ 4Terje Lislevand, Jordi Figuerola, and Tamás Székely. 2007.
Avian body sizes in relation to fecundity, mating system, display behavior, and resource sharing. Ecology 88:1605
♦ 5Hamish 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
♦ 6de 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
♦ 7Alaska Department of Fish and Game♦ 8Jetz W, Sekercioglu CH, Böhning-Gaese K (2008)
The Worldwide Variation in Avian Clutch Size across Species and Space PLoS Biol 6(12): e303. doi:10.1371/journal.pbio.0060303
♦ 9Foods of Spectacled Eiders Somateria fischeri in the Bering Sea, Alaska, Margaret R Petersen, John F Piatt and Kimberley A Trust, WILDFOWL (1998) 49: 124-128
♦ 10Gibson, D. I., Bray, R. A., & Harris, E. A. (Compilers) (2005).
Host-Parasite Database of the Natural History Museum, London