New research is revealing the complexity of bird migration, from species that fly for months without landing to others altering routes due to climate and human influence. Advances in tracking and ...

When the song pauses in a game of musical chairs, everyone jostles for one of the remaining seats. Bird migration today is much the same. When it’s time for a break in their biannual travels, ...

Larger-bodied migratory birds are reproducing less, while sedentary species of small-bodied birds tend to produce more offspring under similar conditions, according to an international study focused ...