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Species · Missouri · BBS 2026 Release · 1966–2025

Ruby-throated Hummingbird Population Trend in Missouri

All statesForest birds

Ruby-throated Hummingbird in Missouri has surged: up 404% on the route-weighted index since 1969.

+404%Since 1969TrendPercent 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 →
91Routes 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 Ruby-throated Hummingbird Trends in MissouriNotable signalsLong-arc shifts the engine flags automatically — sustained declines or increases large enough to stand out from year-to-year noise.Full methodology →

long arc increasecomputed indexTrend sourceWhether the figure is our own computed route-weighted index or an official USGS modeled estimate. The current build labels every trend as computed.Full methodology →

Ruby-throated Hummingbird has surged in Missouri: up 404% on the route-weighted index since 1969.

Ruby-throated Hummingbird Population Forecast in Missouri

If the recent trend holds, Ruby-throated Hummingbird in Missouri is projected to rise about 65% by 2030 — from 1.4 in 2025 to a central estimate of 2.2 (95% range 1.6–2.9). A 5-year backtest shows a typical error of ±32.5%, with 60% of held-out values landing inside the 95% band.

+65%Change by 2030TrendPercent 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 →
2.2Projected 2030 indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →
1.6–2.995% 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 →
±32.5%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, Ruby-throated Hummingbird in Missouri is projected to rise about 65% by 2030 — from 1.4 in 2025 to a central estimate of 2.2 (95% range 1.6–2.9). A 5-year backtest shows a typical error of ±32.5%, with 60% of held-out values landing inside the 95% band.19672030
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 →
20262.11.42.8
20272.11.52.8
20282.21.52.8
20292.21.52.9
20302.21.62.9

Ruby-throated Hummingbird Survey Routes in Missouri

Routes recording Ruby-throated Hummingbird in Missouri.
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 →
Syracuse720241971
Graydon620241967
Frankford520251999
Eugene520252013
Cascade420251969
Centertown420251977
Huntsville420251975
Marshfield420221996
Luray420252015
Lincoln420252013
Gerald420252013
Palace420252013
Sweden320251970
Danville320241969
Osage Beach320251997
Kingsville320251999
Kahoka2320232002
Diamond320252015
West Plains320242015
Union319991991
Moselle320252000
Cassville220251973
Pineville220251975
Cp Girardeau220251968
Wesco220251975

Ruby-throated Hummingbird Population Trend in Other States

alabamaarkansasconnecticutdelawarefloridageorgiaillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippinebraskanew-hampshirenew-jerseynew-yorknorth-carolinanorth-dakotaohiooklahomapennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasvermontvirginiawest-virginiawisconsin

Source: USGS North American Breeding Bird Survey, retrieved 2026-08-14.