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

Eurasian Collared-Dove In Great Basin

All regionsGreat BasinGeneralists

Eurasian Collared-Dove in Great Basin has surged: up 134× on the route-weighted index since 2006.

134×Since 2006TrendPercent 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 →
154Routes 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 →
20YearsYears 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 →

Eurasian Collared-Dove has surged in Great Basin: up 134× on the route-weighted index since 2006.

Eurasian Collared-Dove In Great Basin Population Forecast

If the recent trend holds, Eurasian Collared-Dove in Great Basin is projected to rise about 71% by 2029 — from 5.0 in 2024 to a central estimate of 8.5 (95% range 6.1–11). A 5-year backtest shows a typical error of ±68%, with 0% of held-out values landing inside the 95% band.

+71%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 →
8.5Projected 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 →
6.1–1195% 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 →
±68%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, Eurasian Collared-Dove in Great Basin is projected to rise about 71% by 2029 — from 5.0 in 2024 to a central estimate of 8.5 (95% range 6.1–11). A 5-year backtest shows a typical error of ±68%, with 0% of held-out values landing inside the 95% band.20042029
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 →
20257.14.89.5
20267.55.19.8
20277.85.410
20288.15.810
20298.56.111

Routes In Great Basin

Routes recording Eurasian Collared-Dove 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 →
DeschutesOREGON722024
Columbia NwrWASHINGTON622022
Scootney ReservoirWASHINGTON552024
DorrisCALIFORNIA512019
PocatelloIDAHO502019
Mud LakeIDAHO432023
Modoc Point 2OREGON382024
MaldenWASHINGTON352024
EwanWASHINGTON332019
MerrillOREGON322022
FallonNEVADA312024
Iron GateCALIFORNIA302019
Gardnerville 2NEVADA302018
DeltaUTAH282024
SnowdenWASHINGTON282024
Moses LakeWASHINGTON272022
SelahWASHINGTON272023
Davis CreekCALIFORNIA262024
RirieIDAHO262023
GardnervilleNEVADA242012
UmatillaOREGON242023
Modoc PointOREGON232018
WapatoWASHINGTON232022
AdrianOREGON222021
NighthawkWASHINGTON222024

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