Birds | 2 |
Death / Die-off / Decline | 2 | |
Pathogen | 2 | |
Unusual Animal Behavior | 1 | |
Deformity / Disease / Injury | 1 | |
Erosion | 1 | |
Permafrost Change | 1 |
Human Health | 1 | |
Buildings | 1 | |
Safety | 1 |
1 | 1 | 1 |
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SPRING | 1 | |
SUMMER | 1 | |
WINTER | 1 |