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

Northern Mockingbird Population Trend in Vermont

All statesGeneralists

Northern Mockingbird in Vermont has declined: down 40% on the route-weighted index since 1974.

-40%Since 1974
19Routes In State
33Years

Notable Northern Mockingbird Trends in Vermont

No notable trend signals for Northern Mockingbird in Vermont. See the full index history below.

Northern Mockingbird Population Forecast in Vermont

If the recent trend holds, Northern Mockingbird in Vermont is projected to rise about 375% by 2027 — from 0.05 in 2022 to a central estimate of 0.25 (95% range 0.00–0.75). A 5-year backtest shows a typical error of ±439.4%, with 100% of held-out values landing inside the 95% band.

+375%Change by 2027
0.25Projected 2027 index
0.00–0.7595% range
±439.4%Backtest error
19692027
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
20230.250.000.74
20240.250.000.74
20250.250.000.74
20260.250.000.74
20270.250.000.75

Northern Mockingbird Survey Routes in Vermont

Routes recording Northern Mockingbird in Vermont.
Colchester1320011986
Shaftsbury720041969
S Reading220031985
Post Mills220011980
East Haven219881980
Marlboro119951989
North Pownal119931972
Gaysville119881988
S Wallingfrd119961984
W Rutland120221993
St Johnsbury120131974
Middlesex119751975
Hardwick119901990
Greensboro119841984
Fletcher120001989
Waterville119741974
Hinesburg119931978
Grand Isle119941989
Bristol120122012

Northern Mockingbird Population Trend in Other States

alabamaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasutahvirginiawashingtonwest-virginiawisconsinwyoming

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