BirdAnalyst
Species · Wyoming · BBS 2026 Release · 1966–2025

Killdeer Population Trend in Wyoming

All statesShorebirds

Killdeer in Wyoming has edged down: down 16% on the route-weighted index since 1970.

-16%Since 1970TrendPercent 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 →
130Routes 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 Killdeer Trends in WyomingNotable 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 Killdeer in Wyoming. See the full index history below.

Killdeer Population Forecast in Wyoming

If the recent trend holds, Killdeer in Wyoming is projected to fall about 14% by 2030 — from 3.4 in 2025 to a central estimate of 2.9 (95% range 0.00–6.2). A 5-year backtest shows a typical error of ±24.2%, with 100% of held-out values landing inside the 95% band.

-14%Change by 2030TrendPercent 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 →
2.9Projected 2030 indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →
0.00–6.295% 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 →
±24.2%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, Killdeer in Wyoming is projected to fall about 14% by 2030 — from 3.4 in 2025 to a central estimate of 2.9 (95% range 0.00–6.2). A 5-year backtest shows a typical error of ±24.2%, with 100% of held-out values landing inside the 95% band.19682030
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 →
20263.20.006.5
20273.10.006.4
20283.10.006.3
20293.00.006.3
20302.90.006.2

Killdeer Survey Routes in Wyoming

Routes recording Killdeer in Wyoming.
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 →
Dwyer3220251994
Highlight2520071980
Yoder2120251968
Green River2019841977
Patrick Draw1919801973
Rozet1920251991
Seedskadee 21820242024
Upton1620251987
Wyarno1420251974
Clarkelen1419781968
Soda Well1320251979
Piney1319901980
Arvada1220251982
Newcastle1220251988
Lingle1220241980
Natrona1119921968
Midvale920251974
Bill920181974
Pathfinder920251982
Gvnt Valley820251993
Thunder Basin820252011
Redbird719881969
Shawnee720251988
Kaycee720252022
Nowood620251988

Killdeer Population Trend in Other States

alabamaalaskaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsin

Source: USGS North American Breeding Bird Survey, retrieved 2026-08-14.