The birds are screaming with a high over percentage of 100%. The screams make the people bleed outside of their noses, toes, and fingers. It is strange that a bird’s scream could be a motive for mass murdering. Everyone in the United States of America dies from birds’ screams. Only all the animals are left alive.
The animals rule over America now. But, they only act by their instincts. They act as survivors. No humans are left alive. The animals grieve and mourn their deaths.