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Species · Connecticut · BBS 2025 Release · 1966–2024

White-breasted Nuthatch Population Trend in Connecticut

All statesForest birds

White-breasted Nuthatch in Connecticut has surged: up 152% on the route-weighted index since 1968.

+152%Since 1968
20Routes In State
58Years

Notable White-breasted Nuthatch Trends in Connecticut

long arc increasecomputed index

White-breasted Nuthatch has surged in Connecticut: up 152% on the route-weighted index since 1968.

White-breasted Nuthatch Population Forecast in Connecticut

If the recent trend holds, White-breasted Nuthatch in Connecticut is projected to rise about 26% by 2029 — from 8.0 in 2024 to a central estimate of 10 (95% range 7.0–13). A 5-year backtest shows a typical error of ±9.8%, with 100% of held-out values landing inside the 95% band.

+26%Change by 2029
10Projected 2029 index
7.0–1395% range
±9.8%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
20259.56.513
20269.76.613
20279.86.713
20289.96.813
2029107.013

White-breasted Nuthatch Survey Routes in Connecticut

Routes recording White-breasted Nuthatch in Connecticut.
Mid Haddam1620241973
Warren 21620242012
Greenwich1420181967
Westbrook1320241969
Buckingham920221967
Sherman920191972
Warren920111972
Willimantic820181967
Danbury820231968
Long Hill720191972
Mystic620231973
Uncasville620241973
Woodstock620071968
New Hartford620241994
Granby620241988
No Woodbury420241967
Woodstock 2320242016
E Hartland219921966
Southington220241973
New Hartford219871972

White-breasted Nuthatch Population Trend in Other States

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

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