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

Osprey In Piedmont

All regionsPiedmontBirds of prey

Osprey in Piedmont has surged: up 14× on the route-weighted index since 1983.

14×Since 1983TrendPercent 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 →
46Routes 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 →
39YearsYears 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 Osprey in Piedmont. See the full index history below.

Osprey In Piedmont Population Forecast

If the recent trend holds, Osprey in Piedmont is projected to fall about 11% by 2030 — from 0.23 in 2025 to a central estimate of 0.21 (95% range 0.13–0.29). A 5-year backtest shows a typical error of ±27.9%, with 40% of held-out values landing inside the 95% band.

-11%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 →
0.21Projected 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 →
0.13–0.2995% 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 →
±27.9%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, Osprey in Piedmont is projected to fall about 11% by 2030 — from 0.23 in 2025 to a central estimate of 0.21 (95% range 0.13–0.29). A 5-year backtest shows a typical error of ±27.9%, with 40% of held-out values landing inside the 95% band.19762030
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 →
20260.190.110.27
20270.190.110.27
20280.200.120.28
20290.200.120.28
20300.210.130.29

Routes In Piedmont

Routes recording Osprey 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 →
WashingtonGEORGIA42025
BrodnaxVIRGINIA42025
SiloamGEORGIA32024
Curry HillGEORGIA32019
Rock BranchGEORGIA32025
EarltonMARYLAND32024
RidgewaySOUTH-CAROLINA32025
Van BibberMARYLAND22013
Mooresville 2NORTH-CAROLINA22025
ForsythGEORGIA12024
MaxeysGEORGIA12017
JulietteGEORGIA12014
WhitesburgGEORGIA12017
Lincolnton 2GEORGIA12019
Carrs StationGEORGIA12024
OlneyMARYLAND12024
FowblesburgMARYLAND11983
Upper XrdsMARYLAND12008
TheodoreMARYLAND12013
WheatonMARYLAND12012
MadonnaMARYLAND12014
Bald FriarMARYLAND11996
SandbrookNEW-JERSEY12023
CrotonNEW-JERSEY11986
OakboroNORTH-CAROLINA12016

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