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Species · Utah · BBS 2026 Release · 1966–2025

Eurasian Collared-Dove Population Trend in Utah

All statesGeneralists

Eurasian Collared-Dove in Utah has surged: up 21× on the route-weighted index since 2006.

21×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 →
54Routes In StateSurvey routesHow many standard-protocol BBS routes contributed counts. More routes means a steadier, better-sampled index; very thin coverage is suppressed.Full methodology →
21YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable Eurasian Collared-Dove Trends in UtahNotable 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 Utah: up 21× on the route-weighted index since 2006.

Eurasian Collared-Dove Population Forecast in Utah

If the recent trend holds, Eurasian Collared-Dove in Utah is projected to rise about 64% by 2030 — from 2.8 in 2025 to a central estimate of 4.6 (95% range 3.4–5.7). A 5-year backtest shows a typical error of ±35%, with 40% of held-out values landing inside the 95% band.

+64%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 →
4.6Projected 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 →
3.4–5.795% 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 →
±35%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 Utah is projected to rise about 64% by 2030 — from 2.8 in 2025 to a central estimate of 4.6 (95% range 3.4–5.7). A 5-year backtest shows a typical error of ±35%, with 40% of held-out values landing inside the 95% band.20042030
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 →
20263.92.85.0
20274.12.95.2
20284.23.15.4
20294.43.35.5
20304.63.45.7

Eurasian Collared-Dove Survey Routes in Utah

Routes recording Eurasian Collared-Dove in Utah.
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 →
Kamas3920252010
Hatch2020252010
Escalante1920252006
Goshen1720252007
Oak City1620242004
Wellington 31320252012
Beaver1220252006
Grantsville1020252005
Delta1020252005
Boulder720252007
Newcastle720252008
Crawford Mts620172013
Iron Springs620232009
Aneth620252005
Randolph620242005
Johnson Can620182018
Woodruff520252008
Notom520252010
Wellington 2420112007
Hanna420242010
Gandy420152015
Moab420252008
Fairfield420242007
Alton 2320252025
Alton320182006

Eurasian Collared-Dove Population Trend in Other States

alabamaalaskaarizonaarkansascaliforniacoloradofloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamarylandmichiganminnesotamississippimissourimontananebraskanevadanew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniasouth-carolinasouth-dakotatennesseetexasvirginiawashingtonwisconsinwyoming

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