Family · Strigidae · Strigiformes
Owls Population Trends
15 species tracked, ordered by long-term trend. Steepest declines first.
| History | ||||
|---|---|---|---|---|
| Eastern Screech-Owl | Birds of prey | -74% | 1968 | |
| Spotted Owl | Birds of prey | -64% | 1975 | |
| Northern Saw-whet Owl | Birds of prey | -52% | 1973 | |
| Long-eared Owl | Birds of prey | -46% | 1972 | |
| Northern Hawk Owl | Birds of prey | -36% | 1984 | |
| Western Screech-Owl | Birds of prey | -27% | 1973 | |
| Short-eared Owl | Birds of prey | +34% | 1969 | |
| Great Horned Owl | Birds of prey | +50% | 1968 | |
| Burrowing Owl | Birds of prey | +56% | 1968 | |
| Northern Pygmy-Owl | Birds of prey | +98% | 1970 | |
| Barred Owl | Birds of prey | +124% | 1968 | |
| Flammulated Owl | Birds of prey | n/a | n/a | |
| Elf Owl | Birds of prey | n/a | n/a | |
| Great Gray Owl | Birds of prey | n/a | n/a | |
| Boreal Owl | Birds of prey | n/a | n/a |