Guild · Illinois · BBS 2025 Release · 1966–2024
Birds Of Prey In Illinois
15 species in this guild. As a group they are +109% since 1968.
Guild Signals
No notable trend signals for birds of prey in Illinois. See the full index history below.
Forecast
If the recent trend holds, Birds of prey in Illinois is projected to fall about 14% by 2029 — from 0.97 in 2024 to a central estimate of 0.83 (95% range 0.62–1.0). A 5-year backtest shows a typical error of ±14.4%, with 80% of held-out values landing inside the 95% band.
-14%Change by 2029
0.83Projected 2029 index
0.62–1.095% range
±14.4%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.79 | 0.57 | 1.00 |
| 2026 | 0.80 | 0.58 | 1.0 |
| 2027 | 0.81 | 0.60 | 1.0 |
| 2028 | 0.82 | 0.61 | 1.0 |
| 2029 | 0.83 | 0.62 | 1.0 |
Member Species In Illinois
| Sharp-shinned Hawk | Accipitridae | -75% |
| Northern Harrier | Accipitridae | -70% |
| Broad-winged Hawk | Accipitridae | -29% |
| Eastern Screech-Owl | Strigidae | -28% |
| Great Horned Owl | Strigidae | -27% |
| American Kestrel | Falconidae | -19% |
| Black Vulture | Cathartidae | +112% |
| Red-tailed Hawk | Accipitridae | +178% |
| Osprey | Pandionidae | +316% |
| Mississippi Kite | Accipitridae | +348% |
| Barred Owl | Strigidae | +379% |
| Cooper's Hawk | Accipitridae | +982% |
| Bald Eagle | Accipitridae | 18× |
| Red-shouldered Hawk | Accipitridae | 21× |
| Turkey Vulture | Cathartidae | 52× |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.