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

Belted Kingfisher Population Trend in Iowa

All statesGeneralists

Belted Kingfisher in Iowa has edged down: down 25% on the route-weighted index since 1969.

-25%Since 1969TrendPercent change in the route-weighted abundance index between a smoothed baseline window and the most recent one. It tracks direction, not absolute population.Full methodology →
38Routes In StateSurvey routesHow many standard-protocol BBS routes contributed counts. More routes means a steadier, better-sampled index; very thin coverage is suppressed.Full methodology →
57YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable Belted Kingfisher Trends in IowaNotable signalsLong-arc shifts the engine flags automatically — sustained declines or increases large enough to stand out from year-to-year noise.Full methodology →

No notable trend signals for Belted Kingfisher in Iowa. See the full index history below.

Belted Kingfisher Population Forecast in Iowa

If the recent trend holds, Belted Kingfisher in Iowa is projected to stay roughly flat through 2029, near 0.17 (95% range 0.00–0.45). A 5-year backtest shows a typical error of ±121.7%, with 100% of held-out values landing inside the 95% band.

-8%Change by 2029TrendPercent change in the route-weighted abundance index between a smoothed baseline window and the most recent one. It tracks direction, not absolute population.Full methodology →
0.17Projected 2029 indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →
0.00–0.4595% range95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →
±121.7%Backtest errorBacktest errorTypical error when we hold out the most recent years, forecast them, and compare to what actually happened. Lower means a more trustworthy projection.Full methodology →
If the recent trend holds, Belted Kingfisher in Iowa is projected to stay roughly flat through 2029, near 0.17 (95% range 0.00–0.45). A 5-year backtest shows a typical error of ±121.7%, with 100% of held-out values landing inside the 95% band.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 indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →95% low95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →95% high95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →
20250.180.000.46
20260.170.000.45
20270.170.000.45
20280.170.000.45
20290.170.000.45

Belted Kingfisher Survey Routes in Iowa

Routes recording Belted Kingfisher in Iowa.
Recent countThe raw number of individuals recorded on this route in its most recent survey year. A single-route tally, not a trend.Full methodology →
Washta320131971
Williamsburg219981985
Zearing219951968
Mt Hamill120171996
Exline120061977
Melrose120241982
Bedford119891983
College Spgs119921972
Bryant120101980
West Liberty120181968
Cedar Valley119951976
Brooklyn120211981
Red Rock120181989
Desmoines119681968
Panther120071971
Washington120091978
Neola120021972
Wales120051980
Maquoketa120121969
Alice119991970
Prairieburg120131967
Hudson119891986
Dinsdale120121977
Kanawha120241980
Scranton120191971

Belted Kingfisher Population Trend in Other States

alabamaalaskaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming

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