BirdAnalyst
Species · BCR 22 · BBS 2025 Release · 1966–2024

Eastern Kingbird In Eastern Tallgrass Prairie

All regionsEastern Tallgrass PrairieAerial insectivores

Eastern Kingbird in Eastern Tallgrass Prairie has edged down: down 14% on the route-weighted index since 1968.

-14%Since 1968TrendPercent 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 →
277Routes In RegionSurvey routesHow many standard-protocol BBS routes contributed counts. More routes means a steadier, better-sampled index; very thin coverage is suppressed.Full methodology →
58YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable SignalsNotable 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 Eastern Tallgrass Prairie. See the full index history below.

Eastern Kingbird In Eastern Tallgrass Prairie Population Forecast

If the recent trend holds, Eastern Kingbird in Eastern Tallgrass Prairie is projected to fall about 33% by 2029 — from 5.5 in 2024 to a central estimate of 3.7 (95% range 2.0–5.4). A 5-year backtest shows a typical error of ±17.9%, with 80% of held-out values landing inside the 95% band.

-33%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 →
3.7Projected 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 →
2.0–5.495% 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 →
±17.9%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 Eastern Tallgrass Prairie is projected to fall about 33% by 2029 — from 5.5 in 2024 to a central estimate of 3.7 (95% range 2.0–5.4). A 5-year backtest shows a typical error of ±17.9%, with 80% of held-out values landing inside the 95% band.19662029
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 →
20253.92.25.5
20263.82.25.5
20273.82.15.4
20283.72.15.4
20293.72.05.4

Routes In Eastern Tallgrass Prairie

Routes recording Eastern Kingbird in Eastern Tallgrass Prairie.
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 →
LucerneMISSOURI572021
KirksvilleMISSOURI302024
HamiltonMISSOURI241985
EmdenMISSOURI242024
TrentonMISSOURI182024
Red RockIOWA172024
MadisonMISSOURI172024
Kahoka2MISSOURI172024
McfallMISSOURI162024
Duncan MillsILLINOIS152024
BryantIOWA152024
RensselaerMISSOURI152024
JanesvilleILLINOIS142024
ClaytonILLINOIS142024
ExlineIOWA142024
ThrallKANSAS141970
GretnaNEBRASKA142018
SheffieldILLINOIS132024
MelroseILLINOIS131999
AliceIOWA131999
College Spgs 2IOWA132023
LacledeMISSOURI132024
KingsvilleMISSOURI132024
ChandlervillILLINOIS122024
GreenviewILLINOIS122024

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