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Species · Connecticut · BBS 2025 Release · 1966–2024

Eastern Kingbird Population Trend in Connecticut

All statesAerial insectivores

Eastern Kingbird in Connecticut has collapsed: down 79% on the route-weighted index since 1968.

-79%Since 1968
20Routes In State
58Years

Notable Eastern Kingbird Trends in Connecticut

long arc declinecomputed index

Eastern Kingbird has collapsed in Connecticut: down 79% on the route-weighted index since 1968.

Eastern Kingbird Population Forecast in Connecticut

If the recent trend holds, Eastern Kingbird in Connecticut is projected to rise about 72% by 2029 — from 0.56 in 2024 to a central estimate of 0.95 (95% range 0.00–2.8). A 5-year backtest shows a typical error of ±51.8%, with 100% of held-out values landing inside the 95% band.

+72%Change by 2029
0.95Projected 2029 index
0.00–2.895% range
±51.8%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
20251.30.003.1
20261.20.003.0
20271.10.002.9
20281.00.002.8
20290.950.002.8

Eastern Kingbird Survey Routes in Connecticut

Routes recording Eastern Kingbird in Connecticut.
Warren1320111972
Mystic620231973
Sherman620191972
Mid Haddam420231973
Granby420231989
E Hartland319921966
Woodstock320041968
Uncasville220241973
Willimantic220181967
No Woodbury220241967
Long Hill220191972
Southington220231973
Buckingham120121966
Westbrook120171969
Greenwich120151967
Danbury120221968
New Hartford119871972
New Hartford120221994
Woodstock 2120232016
Warren 2120242012

Eastern Kingbird Population Trend in Other States

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

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