%0 Journal Article %T Migrating birds rapidly increase constitutive immune function during stopover %A Arne Hegemann %A Cas Eikenaar %A Sven Hessler %J - %D 2020 %R 10.1098/rsos.192031 %X Migratory flight is physiologically highly demanding and has been shown to negatively affect multiple parameters of constitutive immune function (CIF), an animal's first line of physiological defen.. %U https://royalsocietypublishing.org/doi/10.1098/rsos.192031