Living on the edge : wetlands and birds in a changing Sahel Author(s) Zwarts, Leo Bijlsma, Rob G. Kamp, Jan van der Wymenga, Eddy
European swallows Hirundo rustica in Botswana Author(s) Van den Brink, Bennie Bijlsma, Rob G. van der Have, Tom M.
Bottleneck areas for migratory birds in the Mediterranean region : an assessment of the problems and recommendations for action Author(s) Bijlsma, Rob G.
