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

Ruby-crowned Kinglet Population Trend in New York

All statesForest birds

Ruby-crowned Kinglet in New York has edged down: down 11% on the route-weighted index since 1968.

-11%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 →
27Routes 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 →
45YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable Ruby-crowned Kinglet Trends in New YorkNotable 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 Ruby-crowned Kinglet in New York. See the full index history below.

Ruby-crowned Kinglet Population Forecast in New York

If the recent trend holds, Ruby-crowned Kinglet in New York is projected to stay roughly flat through 2029, near 0.02 (95% range 0.00–0.14). A 5-year backtest shows a typical error of ±30.7%, with 100% of held-out values landing inside the 95% band.

n/aChange 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 →
0.02Projected 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 →
0.00–0.1495% 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 →
±30.7%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, Ruby-crowned Kinglet in New York is projected to stay roughly flat through 2029, near 0.02 (95% range 0.00–0.14). A 5-year backtest shows a typical error of ±30.7%, 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 →
20250.030.000.15
20260.030.000.15
20270.030.000.14
20280.020.000.14
20290.020.000.14

Ruby-crowned Kinglet Survey Routes in New York

Routes recording Ruby-crowned Kinglet in New York.
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 →
Newcomb320131971
St Regis Fls220061979
Highland120092009
S Berne120122012
Horseshoe L.120121992
Canadice L120212021
Mckeever119801976
Highmarket119791978
N Wilmurt119951980
Blue Ridge N120051980
Old Forge119951972
Blue Ridge S119941969
Speculator119951972
Hope Falls119761975
Inlet120171985
North River119751975
Degrasse119831983
Wanakena120212013
Dexter Lake119751969
Gabriels120171975
Sabattis119831966
Parishville120162016
Tupper Lake119761972
Underwood119961967
Dannemora119761976

Ruby-crowned Kinglet Population Trend in Other States

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