European swallows Hirundo rustica in Botswana
1997
Van den Brink, Bennie |
Bijlsma, Rob G. |
van der Have, Tom M. |
Dutch Working Group for International Wader- and Waterfowl Research (WIWO), NL
Breeding waders at Medusa Bay, western Tamyr, in 1996
1997
Tulp, Ingrid |
Bruinzel, Leo |
Jukema, Joop |
Stepanova, Olga |
Report of the Dutch - Mauritanian project Banc d'Arguin 1985-1986
1976
Ens, Bruno J. |
Piersma, Theunis |
Wolff, W. J. (Wim J.) |
Zwarts, Leo |
An ornithological winter survey of Lake Turkana, Kenya
1987
Schekkerman, H. |
van Wetten J. C. J. |