Causes and consequences of facultative sea crossing in a soaring migrant

• Becciu, Paolo ORCID Animal Flight Laboratory Department of Evolutionary and Environmental Biology Institute of Evolution University of Haifa Haifa Israel
• Rotics, Shay ORCID Movement Ecology Laboratory Department of Ecology, Evolution and Behavior Alexander Silberman Institute of Life Sciences The Hebrew University of Jerusalem Jerusalem Israel
• Horvitz, Nir ORCID Movement Ecology Laboratory Department of Ecology, Evolution and Behavior Alexander Silberman Institute of Life Sciences The Hebrew University of Jerusalem Jerusalem Israel
• Kaatz, Michael Vogelschutzwarte Storchenhof Loburg e.V. Loburg Germany
• Fiedler, Wolfgang ORCID Centre for the Advanced Study of Collective Behaviour University of Konstanz Konstanz Germany
• Zurell, Damaris ORCID Land Change Science Swiss Federal Research Institute WSl Birmensdorf Switzerland
• Flack, Andrea ORCID Centre for the Advanced Study of Collective Behaviour University of Konstanz Konstanz Germany
• Jeltsch, Florian ORCID Berlin‐Brandenburg Institute of Advanced Biodiversity Research (BBIB) Berlin Germany
• Wikelski, Martin ORCID Centre for the Advanced Study of Collective Behaviour University of Konstanz Konstanz Germany
• Nathan, Ran ORCID Movement Ecology Laboratory Department of Ecology, Evolution and Behavior Alexander Silberman Institute of Life Sciences The Hebrew University of Jerusalem Jerusalem Israel
• Sapir, Nir ORCID Animal Flight Laboratory Department of Evolutionary and Environmental Biology Institute of Evolution University of Haifa Haifa Israel

Ecology, Evolution, Behavior and Systematics