BirdAnalyst
Species · BCR 29 · BBS 2025 Release · 1966–2024

Cooper's Hawk In Piedmont

All regionsPiedmontGeneralists

Cooper's Hawk in Piedmont has surged: up 229% on the route-weighted index since 1969.

+229%Since 1969TrendPercent 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 →
123Routes 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 →
52YearsYears 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 →

Cooper's Hawk has surged in Piedmont: up 229% on the route-weighted index since 1969.

Cooper's Hawk In Piedmont Population Forecast

If the recent trend holds, Cooper's Hawk in Piedmont is projected to rise about 34% by 2029 — from 0.18 in 2024 to a central estimate of 0.24 (95% range 0.15–0.33). A 5-year backtest shows a typical error of ±34.5%, with 100% of held-out values landing inside the 95% band.

+34%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 →
0.24Projected 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 →
0.15–0.3395% 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 →
±34.5%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, Cooper's Hawk in Piedmont is projected to rise about 34% by 2029 — from 0.18 in 2024 to a central estimate of 0.24 (95% range 0.15–0.33). A 5-year backtest shows a typical error of ±34.5%, with 100% of held-out values landing inside the 95% band.19662029
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 →
20250.220.140.31
20260.230.140.32
20270.230.140.32
20280.230.150.32
20290.240.150.33

Routes In Piedmont

Routes recording Cooper's Hawk 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 →
TaylorstownVIRGINIA32008
Nixburg 2ALABAMA22010
BaldwinGEORGIA22010
Lincolnton 2GEORGIA22023
Stoney Point 2GEORGIA22017
EkloMARYLAND22018
Van BibberMARYLAND22008
IjamsvilleMARYLAND22022
MadonnaMARYLAND22022
SandbrookNEW-JERSEY22023
PottersvilleNEW-JERSEY22011
CherryvilleNORTH-CAROLINA21966
Brick TavernPENNSYLVANIA22022
BendersvillePENNSYLVANIA22016
JacobusPENNSYLVANIA22015
CampobelloSOUTH-CAROLINA22010
ChesneeSOUTH-CAROLINA22007
TrymeVIRGINIA22022
MillervilleALABAMA12024
LanettALABAMA12010
Liberty CityALABAMA12001
WedoweeALABAMA12001
ForsythGEORGIA12022
CrestGEORGIA12012
LincolntonGEORGIA12017

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