BirdAnalyst
Species · Pennsylvania · BBS 2025 Release · 1966–2024

Wood Duck Population Trend in Pennsylvania

All statesWaterfowl

Wood Duck in Pennsylvania has surged: up 111% on the route-weighted index since 1968.

+111%Since 1968
99Routes In State
58Years

Notable Wood Duck Trends in Pennsylvania

long arc increasecomputed index

Wood Duck has surged in Pennsylvania: up 111% on the route-weighted index since 1968.

Wood Duck Population Forecast in Pennsylvania

If the recent trend holds, Wood Duck in Pennsylvania is projected to rise about 29% by 2029 — from 0.35 in 2024 to a central estimate of 0.45 (95% range 0.23–0.66). A 5-year backtest shows a typical error of ±35.4%, with 100% of held-out values landing inside the 95% band.

+29%Change by 2029
0.45Projected 2029 index
0.23–0.6695% range
±35.4%Backtest error
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 index95% low95% high
20250.430.210.64
20260.430.220.65
20270.440.230.65
20280.440.230.66
20290.450.230.66

Wood Duck Survey Routes in Pennsylvania

Routes recording Wood Duck in Pennsylvania.
Pocono Summit1420231978
Labott1119701969
Eldred920101995
Greentown920181988
Mawr Glen820241988
Mifflintown720112000
Ellenton620191989
Brunnerville 2620192010
Betula520181993
Harrisville520192004
Roulette420161994
Schaefferstown 2420242009
Pottersdale319941994
Arnot320241992
Plesant Grov320212007
Naginey319991979
Quakertown319821979
Normalville319741967
Aspers319811981
Doe Run320211970
Chatham320241999
Wyalusing320231991
Berwick320091997
Slippery Rk219931988
Espyville220191998

Wood Duck Population Trend in Other States

alabamaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonrhode-islandsouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming

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