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Species · North Carolina · BBS 2025 Release · 1966–2024

Red-eyed Vireo Population Trend in North Carolina

All statesForest birds

Red-eyed Vireo in North Carolina has edged up: up 19% on the route-weighted index since 1968.

+19%Since 1968TrendPercent change in the route-weighted abundance index between a smoothed baseline window and the most recent one. It tracks direction, not absolute population.Full methodology →
112Routes In StateSurvey routesHow many standard-protocol BBS routes contributed counts. More routes means a steadier, better-sampled index; very thin coverage is suppressed.Full methodology →
58YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable Red-eyed Vireo Trends in North CarolinaNotable signalsLong-arc shifts the engine flags automatically — sustained declines or increases large enough to stand out from year-to-year noise.Full methodology →

No notable trend signals for Red-eyed Vireo in North Carolina. See the full index history below.

Red-eyed Vireo Population Forecast in North Carolina

If the recent trend holds, Red-eyed Vireo in North Carolina is projected to rise about 14% by 2029 — from 14 in 2024 to a central estimate of 16 (95% range 9.1–22). A 5-year backtest shows a typical error of ±26.5%, with 100% of held-out values landing inside the 95% band.

+14%Change by 2029TrendPercent change in the route-weighted abundance index between a smoothed baseline window and the most recent one. It tracks direction, not absolute population.Full methodology →
16Projected 2029 indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →
9.1–2295% range95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →
±26.5%Backtest errorBacktest errorTypical error when we hold out the most recent years, forecast them, and compare to what actually happened. Lower means a more trustworthy projection.Full methodology →
If the recent trend holds, Red-eyed Vireo in North Carolina is projected to rise about 14% by 2029 — from 14 in 2024 to a central estimate of 16 (95% range 9.1–22). A 5-year backtest shows a typical error of ±26.5%, with 100% of held-out values landing inside the 95% band.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 indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →95% low95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →95% high95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →
2025158.922
2026158.922
2027159.022
2028169.022
2029169.122

Red-eyed Vireo Survey Routes in North Carolina

Routes recording Red-eyed Vireo in North Carolina.
Recent countThe raw number of individuals recorded on this route in its most recent survey year. A single-route tally, not a trend.Full methodology →
Fontana5620241968
Arcola4920241971
Sturgills4920242001
Bullock4320241997
Table Rock4320221994
Andrews4219981994
Jackson4020171995
Highlands4020241994
N. Mills Riv3819951994
Brevard3620241968
California3620131972
Osmond3520242001
Rheasville3520172005
Linville3420241976
Youngsville3320241966
Murphy3320241996
Uwharrie Nf3120011993
Gupton3020242001
Biscoe2920171990
Todd2920231995
Waterville2920241994
Call2820241968
French Broad River2720242001
Durham2620241990
Jonas Ridge2419711968

Red-eyed Vireo Population Trend in Other States

alabamaalaskaarkansascoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanew-hampshirenew-jerseynew-mexiconew-yorknorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasvermontvirginiawashingtonwest-virginiawisconsinwyoming

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