Novelty induces behavioural and glucocorticoid responses in a songbird artificially selected for divergent personalities

a Department of Biology, Swarthmore College, Swarthmore, PA, USA b Department of Migration and Immuno-ecology, Max Planck Institute for Ornithology, Radolfzell, Germany c Department of Civil, Environmental and Geodetic Engineering, The Ohio State University, Columbus, OH, USA d Evolutionary Physiology Group, Max Planck Institute for Ornithology, Seewiesen, Germany e Department of Biology, University of Konstanz, Konstanz, Germany f Department of Animal Ecology, Netherlands Institute of Ecology (NIOO-KNAW), Wageningen, The Netherlands