The researches included geese, broiler chickens and reproductive laying hens. The occurrence of Salmonella rods assigned to the serovars in the bird flocks was assessed for the years 2001-2005. In geese, during 2001-2003, S. typhimurium was isolated most frequently, whereas in 2004 - S. enteriditis (42.8%). Throughout the research period, in the flocks of reproductive laying hens, the S. enteriditis proved the most commonly reported serovar (67.8%). Among broiler chickens in 2001, S. typhimurium prevailed by only a slight percentage (45.1%). In the bird flocks under investigation, the highest Salmonella rate was obtained from the dead embryos, followed by cloacal swabs, inner organs of birds and faeces, while the lowest was detected in the litter obtained from chick breeding boxes.