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

Gray Catbird In Northern Rockies

All regionsNorthern RockiesForest birds

Gray Catbird in Northern Rockies has edged down: down 24% on the route-weighted index since 1970.

-24%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 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 Gray Catbird in Northern Rockies. See the full index history below.

Gray Catbird In Northern Rockies Population Forecast

If the recent trend holds, Gray Catbird in Northern Rockies is projected to rise about 30% by 2030 — from 0.99 in 2025 to a central estimate of 1.3 (95% range 0.71–1.9). A 5-year backtest shows a typical error of ±25.8%, with 100% of held-out values landing inside the 95% band.

+30%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 →
0.71–1.995% 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 →
±25.8%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, Gray Catbird in Northern Rockies is projected to rise about 30% by 2030 — from 0.99 in 2025 to a central estimate of 1.3 (95% range 0.71–1.9). A 5-year backtest shows a typical error of ±25.8%, 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 →
20261.20.651.8
20271.20.671.8
20281.30.681.8
20291.30.691.8
20301.30.711.9

Routes In Northern Rockies

Routes recording Gray Catbird 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 →
WilsonWYOMING112025
ChallisIDAHO102025
Red RockMONTANA92025
NaplesIDAHO82025
ClancyMONTANA82025
KalispellMONTANA72025
Heart ButteMONTANA72025
NewbridgeOREGON72025
KellerWASHINGTON72007
LaurierWASHINGTON72025
Deer ParkWASHINGTON72015
St. Mary 2MONTANA62025
AlpineWYOMING62025
Rochat DivdeIDAHO52025
ChewelahWASHINGTON52021
OttoWYOMING52024
CentervilleIDAHO42025
NezperceIDAHO32012
CoolinIDAHO32024
Libby DamMONTANA32025
Willow Creek 2MONTANA32025
RaynesfordMONTANA32025
Freeman CreekMONTANA32016
NorthportWASHINGTON32025
Ne EntranceWYOMING31988

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