BirdAnalyst
Species · BCR 10 · BBS 2026 Release · 1966–2025

Eastern Kingbird In Northern Rockies

All regionsNorthern RockiesAerial insectivores

Eastern Kingbird in Northern Rockies has edged up: up 11% on the route-weighted index since 1970.

+11%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 →
142Routes 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 →
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 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 Northern Rockies. See the full index history below.

Eastern Kingbird In Northern Rockies Population Forecast

If the recent trend holds, Eastern Kingbird in Northern Rockies is projected to fall about 28% by 2030 — from 1.8 in 2025 to a central estimate of 1.3 (95% range 0.68–1.9). A 5-year backtest shows a typical error of ±28.5%, with 60% of held-out values landing inside the 95% band.

-28%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 →
1.3Projected 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 →
0.68–1.995% 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 →
±28.5%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 Northern Rockies is projected to fall about 28% by 2030 — from 1.8 in 2025 to a central estimate of 1.3 (95% range 0.68–1.9). A 5-year backtest shows a typical error of ±28.5%, with 60% 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 →
20261.30.671.9
20271.30.671.9
20281.30.671.9
20291.30.681.9
20301.30.681.9

Routes In Northern Rockies

Routes recording Eastern Kingbird in Northern Rockies.
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 →
SpartaOREGON222025
GlenMONTANA152025
RaynesfordMONTANA152025
BridgeportOREGON152025
Pablo Res.MONTANA142025
Willow Creek 2MONTANA142025
Church HillMONTANA142025
AugustaMONTANA122025
Clyde ParkMONTANA112025
KalispellMONTANA102025
Green RiverWYOMING101984
PolsonMONTANA82025
MidvaleWYOMING82025
Willow CreekMONTANA71981
NinemileMONTANA72025
ChewelahWASHINGTON72021
LysiteWYOMING72024
NaplesIDAHO62025
Heart ButteMONTANA62025
Wolf CreekMONTANA62025
LaurierWASHINGTON62025
CodyWYOMING62025
EllistonMONTANA52025
Crane CreekIDAHO42019
BoulderMONTANA42025

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