van Bemmelen, Rob, Job de Jong, Floor Arts, Daniël Beuker, Elisa Bravo Rebolledo, Mark Collier, Bas Engels, Mark Hoekstein, Robert Jan Jonkvorst, Sander Lilipaly, Maarten Sluijter, Dirk van Straalen, Pim Wolf, Mervyn Roos & Ruben Fijn Groot aantal papegaaiduikers Fratercula arctica in de nederlandse noordzee in februari 2020
Fijn, Ruben Plantema (2020) Around the World for penguins. Where to see all the 18 penguin species.
Swennen, Kees † Dwarf and giant eggs of eiders Somateria mollissima
Swennen, Kees † Ageing female eiders Somateria mollissima in the field
Camphuysen, Kees Dwarf eggs of herring gulls Larus argentatus and lesser black-backed gulls L. fuscus at Texel, 2006-2020
van Bemmelen, Rob Aalscholvers in IJmuiden: welk percentage betreft grote aalscholvers?
Dierschke, Jochen Comment to Roselaar & van Brandwijk (2019): an old record of a Balearic shearwater Puffinus mauretanicus from Germany
Guse, Nils, Jensen, Jens-Kjeld, Turner, Daniel M., Bravo Rebolledo, Elisa, Kühn, Susanne & van Franeker, Jan A. Detonating cord found in the stomach of a northern fulmar
Keijl, Guido Plantema (2020) Around the World for Albatrosses. Where to see all the albatross species.
van Bemmelen, Rob Dee (2018) Landfill – Notes on Gull Watching and Trash Picking in the Anthropocene.
de Leeuw, Joep Nicolson (2017) The seabird’s cry – The lives and Loves of Puffins, Gannets and Other Ocean Voyagers.
Roselaar, Kees & van Brandwijk, Hans An old record of a Balearic shearwater Puffinus mauretanicus from Germany.
van Dijk, Jan & Leopold, Mardik Een nieuwe kolonie grote sterns in de Waddenzee.
Schreven, Kees & Hammer, Sjurdur Primary moult of great skuas on the breeding grounds, with special attention to the Faroe Islands.
Creuwels, Jeroen Leopold (2015) Eat and be eaten: porpoise diet studies.
Creuwels, Jeroen Brasseur (2017) Seals in Motion – How movements drive population development of harbour seals and grey seals in the North Sea.
van der Vliet, Rinse Cuthbert (2017) - Seabirds beyond the Mountain Crest. The history, natural history and conservation of Hutton’s shearwater.
Keijl, Guido O. Bessesen (2018) - Vaquita - science, politics, and crime in the Sea of Cortez.
Keijl, Guido O. van der Leij & Loeve (2019) - De Nederlandse Meeuwengids.
Platteeuw, Maarten Brooke (2018) - Far from land.
Arts, Floor Sternwerkgroep Nederland.
Voor eerdere jaargangen van SULA, zie hier.