Antibodies to egg‐drop syndrome 76 virus in wild birds in possible conjunction with egg‐shell problems1

Abstract
Antibodies against egg drop syndrome 1976 (EDS 76) virus (strain 127) were detected with the aid of the haemagglutination inhibition test and virus neutralisation test in serum samples of two out of 381 owls, in one out of four storks, in one out of two swans and in one out of 18 wild geese. The antibody positive two owls and the stork laid eggs with a malformed shell. No antibodies against EDS 76 virus were detected in sera of 16 partridges, 28 pheasants, and 72 birds of prey.