Global movement patterns of migratory birds illustrate their fascinating physical and
physiological abilities to cross continents and oceans. During their voyages, most birds land …

There is compelling evidence that A fro‐P alaearctic (A‐P) migrant bird populations have
declined in E urope in recent decades, often to a greater degree than resident or short …

In birds, accumulating energy is far slower than spending energy during flight. During
migration, birds spend, therefore, most of the time at stopover refueling energy used during …

Migration is a key life cycle stage in nearly 2000 species of birds and is a greatly
appreciated phenomenon in both cultural and academic arenas. Despite a long research …

The Sahara Desert is one of the largest land-based barriers on the Earth, crossed twice
each year by billions of birds on migration. Here we investigate how common swifts …

Most songbird migrants travel between their breeding areas and wintering grounds by a
series of nocturnal flights. The exact nocturnal departure time for these flights varies …

In arid regions, spring-fed habitats are frequently the only year-round source of surface
water and are essential habitats for aquatic organisms and primary water sources for …

Each year, billions of songbirds cross large ecological barriers during their migration.
Understanding how they perform this incredible task is crucial to predict how global change …

Many studies have shown that rainfall in the Sahel has a great influence on population
trends of European bird species that spend the northern winter there. African bird species …

Each year more than two billion songbirds cross the Sahara, but how they perform this
formidable task is largely unknown. Using geolocation tracks from 27 pied flycatchers, a …