Movement, from foraging to migration, is known to be under the influence of the
environment. The translation of environmental cues to individual movement decision making …

While corticosterone (CORT) is often suggested to be an important hormone regulating
processes necessary for avian migration, there has been no systematic assessment of …

Some concerns have been raised recently about the assay of corticosterone vs. cortisol in
poultry species. Thus, we tested the hypothesis that ducks secrete both glucocorticoids. First …

Glucocorticoids (GCs) are metabolic hormones that promote catabolic processes, which
release stored energy and support high metabolic demands such as during prolonged …

The onset of spring migratory behavior in birds is thought to be controlled by a rigid
endogenous schedule as a result of selection to time migration with environmental …

In both captive and free-living birds, the emergence of the migratory phenotype is signalled
by rapid and marked increases in food intake and fuelling, as well as changes in amount of …

Wild animals typically suffer from stress when brought into captivity. This stress is
characterized by elevated circulating glucocorticoid levels and weight loss. We here …

For the past 20 years, reintroduction efforts have been underway to re-establish a migratory
population of Northern Bald Ibises (Geronticus eremita) in Central Europe, which now …

The length of time songbirds remain at a migratory stopover site is likely regulated by a daily
stay/go decision informed by fat stores and weather conditions, but the finer‐scale timing of …

Corticosterone (Cort) is involved in multiple physiological processes during bird migration,
complicating its interpretation in a stress context. We investigated whether the leukocyte …