BirdAnalyst
Species · BCR 29 · BBS 2026 Release · 1966–2025

Eurasian Collared-Dove In Piedmont

All regionsPiedmontGeneralists

Eurasian Collared-Dove in Piedmont has surged: up 186% on the route-weighted index since 2002.

+186%Since 2002TrendPercent 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 →
47Routes 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 →
25YearsYears 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 Piedmont: up 186% on the route-weighted index since 2002.

Eurasian Collared-Dove In Piedmont Population Forecast

If the recent trend holds, Eurasian Collared-Dove in Piedmont is projected to rise about 67% by 2030 — from 0.29 in 2025 to a central estimate of 0.49 (95% range 0.24–0.73). A 5-year backtest shows a typical error of ±97.5%, with 20% of held-out values landing inside the 95% band.

+67%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 →
0.49Projected 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 →
0.24–0.7395% 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 →
±97.5%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 Piedmont is projected to rise about 67% by 2030 — from 0.29 in 2025 to a central estimate of 0.49 (95% range 0.24–0.73). A 5-year backtest shows a typical error of ±97.5%, with 20% of held-out values landing inside the 95% band.19992030
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 →
20260.450.210.70
20270.460.210.71
20280.470.220.72
20290.480.230.72
20300.490.240.73

Routes In Piedmont

Routes recording Eurasian Collared-Dove in Piedmont.
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 →
Liberty CityALABAMA52011
Sunny SideGEORGIA52017
MaxeysGEORGIA42024
Lincolnton 2GEORGIA42025
OstwaltNORTH-CAROLINA42024
WedoweeALABAMA32023
BaldwinGEORGIA32011
RutledgeGEORGIA32024
Rock BranchGEORGIA32025
Sharon 2GEORGIA32025
Mooresville 2NORTH-CAROLINA32025
Salem XrdSOUTH-CAROLINA32019
Liberty City 2ALABAMA22025
CrestGEORGIA22023
LincolntonGEORGIA22017
AthensGEORGIA22019
BowdonGEORGIA22025
RolandGEORGIA22025
Carrs StationGEORGIA22025
SharonGEORGIA22022
Good HopeGEORGIA22019
CandlerGEORGIA22022
OakboroNORTH-CAROLINA22021
FlayNORTH-CAROLINA22025
Barton CreekSOUTH-CAROLINA22016

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