![Minden Pictures - Postgraduate student Eva Rose who works with biologist and pigeon researcher Professor Daniel Haag-wackernagel, with a pigeon in her hand at the University of Basel in Switzerland - Heidi Minden Pictures - Postgraduate student Eva Rose who works with biologist and pigeon researcher Professor Daniel Haag-wackernagel, with a pigeon in her hand at the University of Basel in Switzerland - Heidi](https://www.mindenpictures.com/cache/pcache2/00240257.jpg)
Minden Pictures - Postgraduate student Eva Rose who works with biologist and pigeon researcher Professor Daniel Haag-wackernagel, with a pigeon in her hand at the University of Basel in Switzerland - Heidi
![Minden Pictures - Postgraduate student Eva Rose who works with biologist and pigeon researcher Professor Daniel Haag-wackernagel, at the University of Basel in Switzerland - Heidi & Hans-Juergen Koch Minden Pictures - Postgraduate student Eva Rose who works with biologist and pigeon researcher Professor Daniel Haag-wackernagel, at the University of Basel in Switzerland - Heidi & Hans-Juergen Koch](https://www.mindenpictures.com/cache/pcache2/00240253.jpg)
Minden Pictures - Postgraduate student Eva Rose who works with biologist and pigeon researcher Professor Daniel Haag-wackernagel, at the University of Basel in Switzerland - Heidi & Hans-Juergen Koch
![Minden Pictures - Postgraduate student Eva Rose who works with biologist and pigeon researcher Professor Daniel Haag-wackernagel, at the University of Basel in Switzerland - Heidi & Hans-Juergen Koch Minden Pictures - Postgraduate student Eva Rose who works with biologist and pigeon researcher Professor Daniel Haag-wackernagel, at the University of Basel in Switzerland - Heidi & Hans-Juergen Koch](https://www.mindenpictures.com/cache/pcache2/00240252.jpg)
Minden Pictures - Postgraduate student Eva Rose who works with biologist and pigeon researcher Professor Daniel Haag-wackernagel, at the University of Basel in Switzerland - Heidi & Hans-Juergen Koch
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