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
♦ 3SUMMER DIET OF TWO SYMPATRIC SPECIES OF RAPTORS
UPLAND BUZZARD (BUTEO HEMILASIUS) AND EURASIAN EAGLE OWL (BUBO BUBO) IN ALPINE MEADOW: PROBLEM OF COEXISTENCE, Qinghu CUI, Jianping SU, Zhigang JIANG, POLISH JOURNAL OF ECOLOGY, Vol 56, 1 pp. 173179 (2008)