BirdAnalyst
Species · BCR 9 · BBS 2025 Release · 1966–2024

Gray Catbird In Great Basin

All regionsGreat BasinGeneralists

Gray Catbird in Great Basin has held roughly steady: up 3% on the route-weighted index since 1970.

+3%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 →
60Routes 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 →
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 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 Great Basin. See the full index history below.

Gray Catbird In Great Basin Population Forecast

If the recent trend holds, Gray Catbird in Great Basin is projected to rise about 46% by 2029 — from 0.26 in 2024 to a central estimate of 0.39 (95% range 0.13–0.64). A 5-year backtest shows a typical error of ±20.2%, with 100% of held-out values landing inside the 95% band.

+46%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 →
0.39Projected 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 →
0.13–0.6495% 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 →
±20.2%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 Great Basin is projected to rise about 46% by 2029 — from 0.26 in 2024 to a central estimate of 0.39 (95% range 0.13–0.64). A 5-year backtest shows a typical error of ±20.2%, 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 →
20250.370.110.63
20260.370.120.63
20270.380.120.63
20280.380.120.64
20290.390.130.64

Routes In Great Basin

Routes recording Gray Catbird in Great Basin.
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 →
GiffordIDAHO92017
Hardware RanchUTAH82023
LeavenworthWASHINGTON82024
JoelIDAHO62024
NighthawkWASHINGTON52024
SpringfieldIDAHO42005
Twin ButtesIDAHO42022
Dinner StaNEVADA41968
TwispWASHINGTON42024
TonasketWASHINGTON42016
WaitsburgWASHINGTON42004
HyrumUTAH31978
WinthropWASHINGTON32022
Lake ChelanWASHINGTON32024
Magic MtnIDAHO22024
Iron SpringsIDAHO22008
Walker CanNEVADA21968
JosephOREGON21981
PendletonOREGON22024
Fish LakeOREGON22023
GoshenUTAH22016
ReardanWASHINGTON22024
AsotinWASHINGTON22021
RonaldWASHINGTON22022
Blewett PassWASHINGTON22004

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