RMC4THPG–Martin Wikelski is director at Max Planck Institute of Animal Behavior situated at Moeggingen castle near the Lake of Constance.

RMM6GX05–02 March 2018, Germany, Berlin: Martin Wikelski, director of the Max-Planck-Institute for Ornithology in Radolfzell. Photo: Soeren Stache/dpa

RMC4THWY–Martin Wikelski is director at Max Planck Institut of Ornithology situated at Moeggingen castle near the Lake of Constance.

RMM6GX04–02 March 2018, Germany, Berlin: Martin Wikelski, director of the Max-Planck-Institute for Ornithology in Radolfzell. Photo: Soeren Stache/dpa

RMC4THJK–Martin Wikelski is director at Max Planck Institut of Ornithology situated at Moeggingen castle near the Lake of Constance.

RMM6GX0B–02 March 2018, Germany, Berlin: Martin Wikelski, director of the Max-Planck-Institute for Ornithology in Radolfzell. Photo: Soeren Stache/dpa

RMC4THF3–Martin Wikelski is director at Max Planck Institut of Ornithology situated at Moeggingen castle near the Lake of Constance.

RMC4XMB5–Martin Wikelski is director of a Department in the Max Planck Institut of Ornithology situated near the Lake of Constance.