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Jiguet, Frédéric; Robert, Alexandre; Lorrillière, Romain; Hobson, Keith A.; Kardynal, Kevin J.; Arlettaz, Raphaël; Bairlein, Franz; Belik, Viktor; Bernardy, Petra; Copete, José Luis; Czajkowski, Michel Alexandre; Dale, Svein; Dombrovski, Valery; Ducros, Delphine; Efrat, Ron; Elts, Jaanus; Ferrand, Yves; Marja, Riho; Minkevicius, Simonas; Olsson, Peter; ... (2019). Unravelling migration connectivity reveals unsustainable hunting of the declining ortolan bunting. Science Advances, 5(5), eaau2642. American Association for the Advancement of Science 10.1126/sciadv.aau2642
Jiguet, Frédéric; Arlettaz, Raphaël; Bauer, Hans-Günther; Belik, Viktor; Copete, José Luis; Couzi, Laurent; Czajkowski, Michel Alexandre; Dale, Svein; Dombrovski, Valery; Elts, Jaanus; Ferrand, Yves; Hargues, Régis; Kirwan, Guy M.; Minkevicius, Simonas; Piha, Markus; Selstam, Gunnar; Skierczyński, Michał; Siblet, Jean-Philippe; Sokolov, Aleksandr (2016). An update of the European breeding population sizes and trends of the Ortolan Bunting (Emberiza hortulana). Ornis Fennica, 93(3), pp. 186-196. BirdLife Finland