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Species · Wyoming · BBS 2025 Release · 1966–2024

Eastern Kingbird Population Trend in Wyoming

All statesAerial insectivores

Eastern Kingbird in Wyoming has edged up: up 23% on the route-weighted index since 1970.

+23%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 →
87Routes 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 →
56YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable Eastern Kingbird 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 Eastern Kingbird in Wyoming. See the full index history below.

Eastern Kingbird Population Forecast in Wyoming

If the recent trend holds, Eastern Kingbird in Wyoming is projected to stay roughly flat through 2029, near 1.6 (95% range 0.41–2.7). A 5-year backtest shows a typical error of ±59.4%, with 100% of held-out values landing inside the 95% band.

-2%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 →
1.6Projected 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 →
0.41–2.795% 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 →
±59.4%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, Eastern Kingbird in Wyoming is projected to stay roughly flat through 2029, near 1.6 (95% range 0.41–2.7). A 5-year backtest shows a typical error of ±59.4%, with 100% of held-out values landing inside the 95% band.19682029
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 →
20251.60.422.7
20261.60.422.7
20271.60.422.7
20281.60.422.7
20291.60.412.7

Eastern Kingbird Survey Routes in Wyoming

Routes recording Eastern Kingbird 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 →
Arvada1620241982
Otto1120241970
Dayton1020241980
Mayoworth1020241982
Green River1019841977
Cody820241983
Seely820001990
Seely 2820242001
Wyarno720241974
Upton720241987
Lysite720241989
Midvale620241987
Ethete620241991
Clarkelen419781974
Redbird419891968
Patrick Draw419801978
Soda Well420241979
Riverview420221982
Glenrock319771968
Yoder320241968
Gebo320241980
Sussex320241991
Newcastle320241988
Fletcher Pk320242004
Lusk320241987

Eastern Kingbird Population Trend in Other States

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

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