1 Max-Planck-Institute for Ornithology, Eberhard-Gwinner-Street, 82319, Seewiesen, Germany.
2 Max-Planck Comparative Cognition Research Station, Loro Parque Fundación, 38400 Av. Loro Parque Puerto de la Cruz, Tenerife, Spain.
3 Animal Husbandry, Behaviour and Welfare Group, Institute of Animal Breeding and Genetics, University of Giessen, Leihgesterner Weg 52, 35392, Giessen, Germany.
4 Max-Planck-Institute for Ornithology, Eberhard-Gwinner-Street, 82319, Seewiesen, Germany. Matthew.Petelle@gmail.com.
5 Max-Planck Comparative Cognition Research Station, Loro Parque Fundación, 38400 Av. Loro Parque Puerto de la Cruz, Tenerife, Spain. Matthew.Petelle@gmail.com.
6 Center for Proper Housing: Poultry and Rabbits (ZTHZ), Division of Animal Welfare, VPH Institute, University of Bern, Burgerweg 22, Zollikofen, Switzerland. Matthew.Petelle@gmail.com.