BirdAnalyst
Guild · Iowa · BBS 2025 Release · 1966–2024

Birds Of Prey In Iowa

All statesIowa

9 species in this guild. As a group they are +305% since 1969.

Guild Signals

No notable trend signals for birds of prey in Iowa. See the full index history below.

Forecast

If the recent trend holds, Birds of prey in Iowa is projected to fall about 26% by 2029 — from 1.5 in 2024 to a central estimate of 1.1 (95% range 0.76–1.4). A 5-year backtest shows a typical error of ±26.9%, with 40% of held-out values landing inside the 95% band.

-26%Change by 2029
1.1Projected 2029 index
0.76–1.495% range
±26.9%Backtest error
19672029
Projection of the recent trend (dashed) with 80/95% bands — a projection, not a prediction. Habitat, climate, and land use are not modeled.
YearProjected index95% low95% high
20251.00.701.4
20261.10.711.4
20271.10.731.4
20281.10.741.4
20291.10.761.4

Member Species In Iowa

Birds of prey species in Iowa.
Great Horned OwlStrigidae-41%
Eastern Screech-OwlStrigidae-38%
Northern HarrierAccipitridae+14%
Barred OwlStrigidae+65%
American KestrelFalconidae+110%
Red-tailed HawkAccipitridae+200%
Cooper's HawkAccipitridae+244%
Bald EagleAccipitridae+306%
Turkey VultureCathartidae14×

Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.