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 …

Mid‐winter movements of up to several hundreds of kilometres are typical for many
migratory bird species wintering in Africa. Unpredictable temporary food concentrations are …

Loop migration among birds is characterized by the spring route lying consistently west or
east of the autumn route. The existence of loops has been explained by general wind …

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 …

Although there is a general understanding of Montagu's harriers migration routes and
wintering areas, detailed information on the species' migration is still lacking. However …

Abstract Between 2006 and 2008, 14 Montagu's Harriers (Circus pygargus) were tagged
with satellite transmitters at their breeding grounds in NE Spain, recording a total of 18 …

Palearctic migrants wintering in Africa commonly use several sites throughout the winter, a
strategy known as 'itinerancy'. In this way, migrants track spatiotemporal variation in …

Background Environmental preferences and past climatic changes may determine the
length of time during which a species range has contracted or expanded from refugia …

White storks (Ciconia ciconia) are birds that make annual long-distance migration flights
from their breeding grounds in the Northern Hemisphere to the south of Africa. These trips …

Raptor migration has been monitored regularly at Gibraltar since the mid-1960s. Long-term
trends in abundance of spring migration were investigated for the ten most frequent species …