Guild · Delaware · BBS 2025 Release · 1966–2024
Birds Of Prey In Delaware
11 species in this guild. As a group they are +321% since 1968.
Guild Signals
No notable trend signals for birds of prey in Delaware. See the full index history below.
Forecast
If the recent trend holds, Birds of prey in Delaware is projected to fall about 10% by 2029 — from 6.7 in 2024 to a central estimate of 6.0 (95% range 3.5–8.5). A 5-year backtest shows a typical error of ±12.2%, with 100% of held-out values landing inside the 95% band.
-10%Change by 2029
6.0Projected 2029 index
3.5–8.595% range
±12.2%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 5.6 | 3.1 | 8.1 |
| 2026 | 5.7 | 3.2 | 8.2 |
| 2027 | 5.8 | 3.3 | 8.3 |
| 2028 | 5.9 | 3.4 | 8.4 |
| 2029 | 6.0 | 3.5 | 8.5 |
Member Species In Delaware
| American Kestrel | Falconidae | -76% |
| Northern Harrier | Accipitridae | +26% |
| Great Horned Owl | Strigidae | +88% |
| Cooper's Hawk | Accipitridae | +164% |
| Barred Owl | Strigidae | +173% |
| Turkey Vulture | Cathartidae | +560% |
| Red-tailed Hawk | Accipitridae | +564% |
| Red-shouldered Hawk | Accipitridae | +776% |
| Osprey | Pandionidae | +800% |
| Black Vulture | Cathartidae | +807% |
| Bald Eagle | Accipitridae | 34× |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.