The extraordinary adaptations of birds to contend with atmospheric conditions during their
migratory flights have captivated ecologists for decades. During the 21st century …

It has been suggested that birds migrate faster in spring than in autumn because of
competition for arrival order at breeding grounds and environmental factors such as …

Climatic warming has intensified selection for earlier reproduction in many organisms, but
potential constraints imposed by climate change outside the breeding period have received …

Migrating birds make the longest non‐stop endurance flights in the animal kingdom. Satellite
technology is now providing direct evidence on the lengths and durations of these flights …

Atmospheric conditions strongly influence ecological systems, and tools that simplify the
access and processing of atmospheric data can greatly facilitate ecological research. We …

The small size of the billions of migrating songbirds commuting between temperate breeding
sites and the tropics has long prevented the study of the largest part of their annual cycle …

Climate change has caused a clear and univocal trend towards advancement in spring
phenology. Changes in autumn phenology are much more diverse, with advancement …

The tracking of small avian migrants has only recently become possible by the use of small
light-level geolocators, allowing the reconstruction of whole migration routes, as well as …

Knowledge about migratory connectivity, the degree to which individuals from the same
breeding site migrate to the same wintering site, is essential to understand processes …

According to migration theory and several empirical studies, long‐distance migrants are
more time‐limited during spring migration and should therefore migrate faster in spring than …