Among 25 patients, 16 manifested clinically as streptococcal toxic shock syndromes (STSS) and 9 streptococcal meningocephalitis syndrome, The mortality was 81.25% and 11.11% respectively.
Typically, this manifests as the discovering bird alarm calling, like you can see in this photo, followed by the recruitment of other birds to the area to form what we call a mob.