Naive songbirds show seasonally appropriate spring orientation in the laboratory despite having never completed first migration

Authors: Joe Wynn, Bo Leberecht, Miriam Liedvogel, Lars Burnus, Raisa Chetverikova, Sara Döge, Thiemo Karwinkel, Dmitry Kobylkov, Jingjing Xu, and Henrik Mouritsen Year: 2023 Publication: Biology Letters Publication Link: https://doi.org/10.1098/rsbl.2022.0478 Abstract: The role of inherited orientation programmes in determining the outbound migratory

Recovery of constitutive immune function after migratory endurance flight in free-living birds

Authors: Cas Eikenaar, Alessia Ostolani, Sven Hessler, Ellen Y. Ye, and Arne Hegemann Year: 2023 Publication: Biology Letters Publication Link: https://doi.org/10.1098/rsbl.2022.0518 Abstract: Strenuous physical activity can negatively affect constitutive innate immune function (CIF), the always present first line of defence against pathogens.