Species · Massachusetts · BBS 2025 Release · 1966–2024

Canada Goose Population Trend in Massachusetts

Canada Goose in Massachusetts has surged: up 21× on the route-weighted index since 1969.

21×Since 1969
31Routes In State
57Years

Notable Canada Goose Trends in Massachusetts

long arc increasecomputed index

Canada Goose has surged in Massachusetts: up 21× on the route-weighted index since 1969.

Canada Goose Population Forecast in Massachusetts

If the recent trend holds, Canada Goose in Massachusetts is projected to stay roughly flat through 2029, near 7.1 (95% range 2.9–11). A 5-year backtest shows a typical error of ±48.3%, with 100% of held-out values landing inside the 95% band.

-4%Change by 2029
7.1Projected 2029 index
2.91195% range
±48.3%Backtest error
19672029
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
20256.72.411
20266.82.511
20276.92.711
20287.02.811
20297.12.911

Canada Goose Survey Routes in Massachusetts

Routes recording Canada Goose in Massachusetts.
Holden4720241982
Hancock4020141998
Princeton3019761972
Chesterfield2320241986
Wellfleet 21320212016
Maynard920211969
Belchertown720241986
N. Andover720241995
E Pepperell619941987
Cheshire619921974
Marion520241967
Littleton520241988
Chilmark419831971
Mansfield420221970
N Orange420241977
Pittsfield420061976
Gay Head420242002
Cummington 2420242015
E Dennis320211968
Sheffield320121978
Ware River320181994
Warren 2320242010
Wellfleet219771977
Brockton220181984
Newburyport220151974

Canada Goose Population Trend in Other States

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