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

Canada Goose Population Trend in Delaware

All statesWaterfowl

Canada Goose in Delaware has surged: up 54× on the route-weighted index since 1970.

54×Since 1970
14Routes In State
51Years

Notable Canada Goose Trends in Delaware

long arc increasecomputed index

Canada Goose has surged in Delaware: up 54× on the route-weighted index since 1970.

Canada Goose Population Forecast in Delaware

If the recent trend holds, Canada Goose in Delaware is projected to fall about 44% by 2029 — from 47 in 2024 to a central estimate of 26 (95% range 8.8–43). A 5-year backtest shows a typical error of ±56.7%, with 80% of held-out values landing inside the 95% band.

-44%Change by 2029
26Projected 2029 index
8.8–4395% range
±56.7%Backtest error
19682029
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
2025246.941
2026257.442
2027257.942
2028268.443
2029268.843

Canada Goose Survey Routes in Delaware

Routes recording Canada Goose in Delaware.
Holleyville 214620242006
Harrington7320241974
Holleyville3320041976
Milton3220161996
Pepperbox2920162002
Mt Pleasant2520191968
Blackbird1020241997
Wilmington820131978
Pepperbox 2620242019
Lowes Xrds419871987
Georgetown220151999
Frederica120131968
Frankford119701970
Bethany Bch119901974

Canada Goose Population Trend in Other States

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

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