Studies of Zugunruhe–the 'migratory restlessness' behaviour of captive birds–have been
integral to our understanding of animal migration, revealing an inherited propensity to …

Osmoregulation refers to the mechanism by which birds regulate water and electrolyte levels
in their bodies. In this chapter, I explain the various ways that birds obtain water, including …

Many insectivorous passerines become frugivorous during migration. Because water may
facilitate the digestion of dry fruits, some passerines may benefit from staging in stopover …

Migration allows animals to seasonally exploit favorable habitats that are geographically
disparate, and migratory animals have a suite of adaptations to complete their extraordinary …