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

Common Yellowthroat In Great Basin

All regionsGreat BasinForest birds

Common Yellowthroat in Great Basin has surged: up 17× on the route-weighted index since 1970.

17×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 →
140Routes 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 →

long arc increasecomputed indexTrend sourceWhether the figure is our own computed route-weighted index or an official USGS modeled estimate. The current build labels every trend as computed.Full methodology →

Common Yellowthroat has surged in Great Basin: up 17× on the route-weighted index since 1970.

Common Yellowthroat In Great Basin Population Forecast

If the recent trend holds, Common Yellowthroat in Great Basin is projected to stay roughly flat through 2029, near 1.4 (95% range 1.1–1.8). A 5-year backtest shows a typical error of ±10.3%, with 100% of held-out values landing inside the 95% band.

+9%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 →
1.4Projected 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 →
1.1–1.895% 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 →
±10.3%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 Great Basin is projected to stay roughly flat through 2029, near 1.4 (95% range 1.1–1.8). A 5-year backtest shows a typical error of ±10.3%, 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 →
20251.30.971.7
20261.40.991.7
20271.41.01.7
20281.41.01.8
20291.41.11.8

Routes In Great Basin

Routes recording Common Yellowthroat 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 →
Fish LakeOREGON312024
ChinchaloOREGON222024
JoelIDAHO202024
CallaoUTAH202024
MaldenWASHINGTON152024
DorrisCALIFORNIA102019
Harney LakeOREGON82024
Bear RiverUTAH82023
PicaboIDAHO72021
Meadow VallyNEVADA72024
ReardanWASHINGTON72024
Virgin CreekNEVADA52018
LynnUTAH52023
Goose Creek Mtn.UTAH52023
KendallWASHINGTON52024
NighthawkWASHINGTON52024
Scootney ReservoirWASHINGTON52022
Toiyabe NfNEVADA42024
JosephOREGON42022
MerrillOREGON42022
Warner VallyOREGON42024
RimrockWASHINGTON42024
EwanWASHINGTON42019
PotholesWASHINGTON42023
LeadoreIDAHO32013

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