Reference citation: BJ Stacey. 2015. Fratercula arctica eating Ammodytes americanus. iNaturalist.org. Accessed at on 23 Jan 2021.
Source citation: http://iNaturalist.org is a place where you can record what you see in nature, meet other nature lovers, and learn about the natural world.
Reference citation: Karpouzi, V.S. 2005. Modelling and mapping trophic overlap between fisheries and the world's seabirds. MSc thesis, Department of Zoology, University of British Columbia, Vancouver, BC, Canada.
Source citation: Palomares, M.L.D. and D. Pauly. Editors. 2018. SeaLifeBase. World Wide Web electronic publication. www.sealifebase.org, version (10/2018).
