Directional shifts in migration pattern of rollers (Coracias garrulus) from a western European population

  title={Directional shifts in migration pattern of rollers (Coracias garrulus) from a western European population},
  author={Tamara Emmenegger and Patrick Mayet and Olivier Duriez and Steffen Hahn},
  journal={Journal of Ornithology},
Abstract Individual migrants often fly detours when travelling between breeding and non-breeding sites, resulting in specific changes in flight directions along a migratory leg. Western European populations of the European Roller (Coracias garrulus), the only member of the roller family of birds to breed in Europe, differ substantially in their predicted flight directions, leading to different hypotheses being suggested for passage areas and non-breeding destinations. In this study we have… 
Disentangling Migratory Routes and Wintering Grounds of Iberian Near-Threatened European Rollers Coracias garrulus
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Important areas for the conservation of the European Roller Coracias garrulus during the non-breeding season in southern Africa
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This work tracks the individual migration routes and annual cycles of male Northern Wheatears Oenanthe oenantshe, a trans-Sahara songbird migrant from a German breeding population with light-level geolocators, which wintered in the Sahel zone of western Africa.
Endogenously controlled changes in migratory direction of the garden warbler,Sylvia borin
SummaryGarden warblers breeding in central Europe and wintering in tropical and southern Africa show characteristic changes in flight direction during their fall migration: they initially leave their
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Contrary to earlier hypotheses of random movements in the Sahelian-wintering quarters, the present study shows that Montagu's harriers visited distinct home ranges, they were site-faithful and tracked seasonal changes in food availability related to previous rainfall patterns, caused by the shifting Intertropical Convergence Zone.
The annual cycle of a trans-equatorial Eurasian–African passerine migrant: different spatio-temporal strategies for autumn and spring migration
It is demonstrated the existence of fundamentally different spatio-temporal migration strategies used by the birds during autumn and spring migration, and that songbirds may rely on distinct staging areas for completion of their annual cycle, suggesting more sophisticated endogenous control mechanisms than merely clock-and-compass guidance among terrestrial solitary migrants.
From the Mediterranean Sea to Madagascar: Are there ecological barriers for the long-distance migrant Eleonora’s falcon?
We examined the connection between landscape characteristics and behaviour of a long-distance migratory raptor. Our main goal was to test whether long-distance migratory birds adjust their migration
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Estimating migratory connectivity of a small Palaearctic long-distance migrant, the common nightingale Luscinia megarhynchos, and comparing resources used in non-breeding areas with resources used at the breeding grounds indicates adaptations to changes in food availability.
Detours in bird migration.
  • T. Alerstam
  • Environmental Science
    Journal of theoretical biology
  • 2001
An evaluation of a number of observed and potential detours and the effects of differences in fuel deposition rates and in transport costs for the profitability of detours indicates that reduction of fuel transport costs may well be a factor of widespread importance for the evolution of detour in bird migration at wide ecological barriers.
An unknown migration route of the ‘globally threatened’ Aquatic Warbler revealed by geolocators
AbstractThe globally-threatened Aquatic Warbler (Acrocephalus paludicola) breeds in Europe and spends the northern winter in sub-Saharan West Africa. We attached 30 geolocators to breeding birds in