BirdAnalyst
Species · New Jersey · BBS 2025 Release · 1966–2024

Warbling Vireo Population Trend in New Jersey

All statesForest birds

Warbling Vireo in New Jersey has surged: up 13× on the route-weighted index since 1968.

13×Since 1968
25Routes In State
58Years

Notable Warbling Vireo Trends in New Jersey

long arc increasecomputed index

Warbling Vireo has surged in New Jersey: up 13× on the route-weighted index since 1968.

Warbling Vireo Population Forecast in New Jersey

If the recent trend holds, Warbling Vireo in New Jersey is projected to rise about 31% by 2029 — from 1.5 in 2024 to a central estimate of 1.9 (95% range 1.1–2.7). A 5-year backtest shows a typical error of ±32.4%, with 100% of held-out values landing inside the 95% band.

+31%Change by 2029
1.9Projected 2029 index
1.1–2.795% range
±32.4%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
20251.81.02.6
20261.91.12.7
20271.91.12.7
20281.91.12.7
20291.91.12.7

Warbling Vireo Survey Routes in New Jersey

Routes recording Warbling Vireo in New Jersey.
Bloomsbury1320241969
Ramseysburg920241995
Hope619941970
Pedricktown 2320232013
New Bedford220241994
Midvale220221967
Kemah Lake220241980
High Point220241987
Roosevelt220221986
Toms River120192007
Albion120221972
Sandbrook120221970
Holmansville119951991
Clarksville119721972
Croton120071970
Robbinsville119771966
Dover120231980
Pottersville120231984
Gillette120242001
Keyport120191994
Cranbury120241987
Mt Misery119761976
Pedricktown120122001
Winslow119941990
Croton 2120242009

Warbling Vireo Population Trend in Other States

alabamaalaskaarizonaarkansascaliforniacoloradoconnecticutdelawareidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming

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