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Article

A Barn Swallow Hirundo rustica roost under attack: timing and risks in the presence of African Hobbies Falco cuvieri

R. G. Bijlsma, Auteur ; B. Van Den Brink, Auteur

Dans Ardea (93(1) SPR 2005)

A large Barn Swallow Hirundo rustica roost in Pennisetum-covered clearings amid rainforest in SE Nigeria attracted at least eleven species of avian predators. Departure and arrival of Swallows at the roost was highly predictable and synchronised[...]

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Article

Climatic effects on timing of spring migration and breeding in a long-distance migrant, the pied flycatcher Ficedula hypoleuca

C. Both, Auteur ; R. G. Bijlsma, Auteur ; M. E. Visser, Auteur

Dans Journal of Avian Biology (36(5) SEP 2005)

Climate change has advanced the breeding dates of many bird species, but for few species we know whether this advancement is sufficient to track the advancement of the underlying levels of the food chain. For the long-distance migratory pied fly[...]

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Article

European Swallows Hirundo rustica in Botswana during three non-breeding seasons: the effects of rainfall on moult

B. Van Den Brink, Auteur ; R. G. Bijlsma, Auteur ; T. M. Van der Have, Auteur

Dans Ostrich (71(1-2) MAR 2000)

The rate of moult of European Swallows spending the non-breeding season in Botswana was studied during December-January of 1992/93, 1993/94 and 1994/95 to investigate the effects of variability in rainfall and roosting habitat availability. In J[...]

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Article

Newly-discovered European crossbill diversity is driven by divergent natural selection

P. Edelaar, Auteur ; M. S. Robb, Auteur ; K. van Eerde, Auteur ; K. Terpstra, Auteur ; R. G. Bijlsma, Auteur

Dans Journal of Ornithology (147(5, Suppl. 1) AUG 2006)

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