Survey of antibodies against Francisella tularensis and some enteropathogenic bacteria in the Hooded Crow Corvus corone cornix
Eighty-two hooded crows Corvus corone cornix L., 1758, were trapped in December 1980 using a great Norwegian Hooded Crows Trap in Grorud-dalen, Oslo, Norway.The birds were separated into two groups according to age (less than one year old, and more than one year old).Blood samples were taken by heart Fab Parts puncture and the sera were tested for