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Species · Maryland · BBS 2026 Release · 1966–2025

Eastern Wood-Pewee Population Trend in Maryland

All statesAerial insectivores

Eastern Wood-Pewee in Maryland has surged: up 102% on the route-weighted index since 1968.

+102%Since 1968TrendPercent 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 →
76Routes 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 →
59YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable Eastern Wood-Pewee Trends in MarylandNotable 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 →

Eastern Wood-Pewee has surged in Maryland: up 102% on the route-weighted index since 1968.

Eastern Wood-Pewee Population Forecast in Maryland

If the recent trend holds, Eastern Wood-Pewee in Maryland is projected to fall about 21% by 2030 — from 14 in 2025 to a central estimate of 11 (95% range 8.7–14). A 5-year backtest shows a typical error of ±24.1%, with 20% of held-out values landing inside the 95% band.

-21%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 →
11Projected 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 →
8.7–1495% 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 →
±24.1%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, Eastern Wood-Pewee in Maryland is projected to fall about 21% by 2030 — from 14 in 2025 to a central estimate of 11 (95% range 8.7–14). A 5-year backtest shows a typical error of ±24.1%, with 20% of held-out values landing inside the 95% band.19662030
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 →
2026118.413
2027118.414
2028118.514
2029118.614
2030118.714

Eastern Wood-Pewee Survey Routes in Maryland

Routes recording Eastern Wood-Pewee in Maryland.
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 →
Earlton4720242014
Olney3220251966
Emmitsburg3120251966
Piney Grove2920251995
Ijamsville2920251986
Green Ridge2820251995
Island Creek2620251991
Oldtown2520251970
Smithsburg2520141970
Williamsport2320251966
Pomonkey2320251966
Madonna2320222009
Wolfsville2220251966
Davidsnville2020251982
Honga1820251966
Hughesville1620251966
Jennings1620251995
Nottingham1620252005
Warfieldsbrg1520251966
Eklo1520181966
Easton1520251966
Pt Republic1419891966
Millington1420251966
Madison1420251966
Furnace Town1420252015

Eastern Wood-Pewee Population Trend in Other States

alabamaarkansasconnecticutdelawarefloridageorgiaillinoisindianaiowakansaskentuckylouisianamainemassachusettsmichiganminnesotamississippimissourimontananebraskanew-hampshirenew-jerseynew-yorknorth-carolinanorth-dakotaohiooklahomapennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasvermontvirginiawest-virginiawisconsin

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