An outbreak of streptococcosis in eared grebes (Podiceps nigricollis)
An outbreak of streptococcosis ( Streptococcus zooepidemicus ), apparently the first recorded in wild birds, killed an estimated 7,500 eared grebes ( Podiceps nigricollis ) on Great Salt Lake (Utah) in November and December, 1977. Ducks and gulls feeding in the same area were unaffected.
Utah↗