- Of the 30 events listed here--I don't know if this is comprehensive, it should be stated--20 are for water animals (mostly fish, but one incident of manatees), 9 are incidents of mass bird kills, and 1 is for bats.
- Of those: 5 incidents were the result of point-source pollution or suspected to be so; 2 incidents involved death because of disease or suspected disease; 2 were due to conditions associated with industrial food production (aquaculture and large-scale commercial fishing); 1 of the bird death incidents was the result of mutilation or some sort of direct slashing violence, and 1 was the result of motor vehicle strike at a location known for this occurring frequently, albeit on a smaller scale.
- 4 of the bird deaths (and these were the ones that really seemed to get some people on the end times are nigh or it's some military experiment gone awry angle) are suspected of occurring because of fireworks scaring and disorienting them, lighting strike or other storm activity, or something along those lines. Frankly, these are the only ones with mysterious or semi-mysterious causes.
- That leaves the remainder due to one cause: Extreme or unseasonable weather.
The one incident of bat deaths can be ascribed to unseasonable warm weather in southern Arizona. One incident of bird death in New Zealand can be attributed to abnormal La Niña conditions. Two incidents of fish deaths in Australia are directly the result of extreme flooding there. The remaining eleven mass fish kills resulted from abnormally cold conditions, in the UK, Canada, and in waters along Florida up through South Carolina.
