Large bodies of water represent major obstacles for the migration of soaring birds because
thermal updrafts are absent or weak over water. Soaring birds are known to time their water …

Delayed maturity and low reproductive rate make raptors naturally sensitive to high mortality
rates, yet a wide variety of human-related threats negatively affect their population dynamics …

Remote technologies are producing leapfrog advances in identifying the routes and
connectivity of migratory species, which are still unknown for hundreds of taxa, especially …

Red Kite shows a great variability in its migration strategies: most individuals in north-
eastern Europe are migrants, but there is also a growing number of sedentary individuals …

Abstract The Black Kite (Milvus migrans) is one of the most widespread raptors in the world.
The Palaearctic is populated by two migrating subspecies, Milvus migrans migrans and …

Many studies suggest that migratory birds are expected to travel more quickly during spring,
when they are en route to the breeding grounds, in order to ensure a high-quality territory …

Migration counts can offer a cost‐effective method for monitoring the state of migrant raptor
populations. However, differential migration strategies between inexperienced juveniles and …

Anthropogenic activity results in production of wastes, including litter in the environment. The
problem of waste pollution is especially noticeable and usually discussed from the …

Black kites of the nominal subspecies Milvus migrans migrans breed in the Western
Palearctic and in Central Asia, while the European population is relatively small. The birds …

Water bodies are considered a barrier to the migration of large bird species, mainly because
of the absence of thermals that these birds heavily rely on to move large distances with little …