Part A: Techniques to Study Seabirds 1. An Introduction to Seabirds and Their Study Marie Claire Gatt, José Pedro Granadeiro and Paulo Catry 2. Conventional and Modern Approaches to Study Seabird Trophic Ecology and Diet Filipe R. Ceia, José C. Xavier, Ana R. Carreiro, Ivo dos Santos and Yves Cherel 3. A Physiological Toolbox to Explore the Relationships Between Seabirds and Their Changing Environments Ana Cláudia Norte, Pedro Miguel M. Araújo and David Costantini 4. Tracking Seabirds for Conservation and Marine Spatial Planning Jorge M. Pereira, Vitor H. Paiva, Lucas Krüger and Stephen C. Votier Part B: Seabirds Interacting with Human Activities and Infrastructures 1. Seabird and Fisheries Interactions Nuno Oliveira, Jaime A. Ramos, Joana Gomes Calado and José Manuel Arcos 2. Urban Gulls Living with Humans Joana Pais de Faria, Catarina S. Lopes, Edward Kroc, Louise K. Blight and Ruedi G. Nager 3. Seabirds and Marine Renewable Energy Sources Andrew J.P. Harwood and Sue King 4. Seabirds and Biotoxins María Victoria M. Casero, Jaime A. Ramos and Leonel Pereira Part C: Seabirds as Ecological Indicators 1. Seabirds as Indicators of Forage Fish Stocks Jaime A. Ramos and Robert W. Furness 2. Seabirds as Indicators of Oceanographic Changes Vitor H. Paiva 3. Seabirds as Indicators of Metal and Plastic Pollution Catarina S. Lopes, Maria I. Laranjeiro, Jennifer L. Lavers, Annett Finger and Jennifer Provencher 4. Antarctic Seabirds as Indicators of Climate Change José C. Xavier, Richard A. Phillips and Akinori Takahashi Part D: Actions for Seabird Conservation 1. Light Pollution as a Seabirds’ Conservation Threat Cátia S.A. Gouveia 2. Eradication and Control of Invasive Mammal Species as a Seabird Conservation Tool Paulo Oliveira, Félix M. Medina, Manuel Nogales and Pedro Luís Geraldes 3. Identifying and Establishing Marine Protected Areas Worldwide: The Contribution of Seabird Data Lucas Krüger