BirdAnalyst
Species · BCR 22 · BBS 2026 Release · 1966–2025

Common Yellowthroat In Eastern Tallgrass Prairie

All regionsEastern Tallgrass PrairieForest birds

Common Yellowthroat in Eastern Tallgrass Prairie has increased: up 46% on the route-weighted index since 1968.

+46%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 →
278Routes 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 →
59YearsYears 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 Common Yellowthroat in Eastern Tallgrass Prairie. See the full index history below.

Common Yellowthroat In Eastern Tallgrass Prairie Population Forecast

If the recent trend holds, Common Yellowthroat in Eastern Tallgrass Prairie is projected to fall about 19% by 2030 — from 13 in 2025 to a central estimate of 10 (95% range 7.1–13). A 5-year backtest shows a typical error of ±15.7%, with 100% of held-out values landing inside the 95% band.

-19%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 →
10Projected 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 →
7.1–1395% 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 →
±15.7%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, Common Yellowthroat in Eastern Tallgrass Prairie is projected to fall about 19% by 2030 — from 13 in 2025 to a central estimate of 10 (95% range 7.1–13). A 5-year backtest shows a typical error of ±15.7%, with 100% of held-out values landing inside the 95% band.19662030
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 →
2026107.213
2027107.213
2028107.213
2029107.213
2030107.113

Routes In Eastern Tallgrass Prairie

Routes recording Common Yellowthroat 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 →
LucerneMISSOURI672025
BedfordIOWA492025
BradburyILLINOIS482025
Kahoka2MISSOURI452024
BryantIOWA442025
LurayMISSOURI392025
JanesvilleILLINOIS372025
HudsonIOWA342025
MarshallILLINOIS332025
KellILLINOIS322025
Kankakee SandsINDIANA322025
WalesIOWA322025
BelleviewILLINOIS312025
WallaceINDIANA312024
BrooklynIOWA312025
New HamptonMISSOURI312025
Davis CornerIOWA302025
MartinsvilleILLINOIS282025
PiersonIOWA282025
AustinMINNESOTA282023
HarveysburgOHIO281996
KahokaMISSOURI271998
EmdenMISSOURI272024
ExlineIOWA262025
WayneILLINOIS252025

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