Attributes / relations provided by
♦ 1Cirtwill, Alyssa R.; Eklöf, Anna (2018), Data from: Feeding environment and other traits shape
species' roles in marine food webs, Dataset, https://doi.org/10.5061/dryad.1mv20r6
♦ 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.