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

Turkey Vulture Population Trend in Delaware

All statesGeneralists

Turkey Vulture in Delaware has surged: up 560% on the route-weighted index since 1968.

+560%Since 1968
17Routes In State
58Years

Notable Turkey Vulture Trends in Delaware

long arc increasecomputed index

Turkey Vulture has surged in Delaware: up 560% on the route-weighted index since 1968.

Turkey Vulture Population Forecast in Delaware

If the recent trend holds, Turkey Vulture in Delaware is projected to stay roughly flat through 2029, near 38 (95% range 26–49). A 5-year backtest shows a typical error of ±7.2%, with 100% of held-out values landing inside the 95% band.

-1%Change by 2029
38Projected 2029 index
26–4995% range
±7.2%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
2025352447
2026362448
2027372548
2028372549
2029382649

Turkey Vulture Survey Routes in Delaware

Routes recording Turkey Vulture in Delaware.
Frankford10520121966
Holleyville7120041967
Milton 26920172017
Holleyville 26020242006
Harrington5620241966
Pepperbox 25320242017
Pepperbox5120161998
Milton4620161966
Frederica2220141966
Georgetown2220221992
Millsboro1820242017
Wilmington420141966
Dover419871967
Mt Pleasant320191966
Blackbird320241994
Lowes Xrds119911966
Bethany Bch119901966

Turkey Vulture Population Trend in Other States

alabamaarizonaarkansascaliforniacoloradoconnecticutfloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming

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