When sleep is the imperative
Cosmos Magazine - Mon 19 Aug 19Study finds some migrating birds put it ahead of security.
These migratory birds will risk their lives for a good nap
Phys.org - Mon 19 Aug 19When driving across country, people can only make it so far before stopping off to rest. Likewise, most migratory songbirds must make stops during their long-distance journeys to sleep along ...
Birds that tuck their heads into their feathers as they sleep to stop heat loss are less healthy
Daily Mail - Mon 19 Aug 19Experts from the University of Vienna analysed the sleeping patterns of migratory Garden Warblers at a stopover site in the Mediterranean using thermal imaging cameras.