BirdAnalyst
Species · Missouri · BBS 2025 Release · 1966–2024

Great Horned Owl Population Trend in Missouri

All statesGeneralists

Great Horned Owl in Missouri has declined: down 36% on the route-weighted index since 1969.

-36%Since 1969
75Routes In State
57Years

Notable Great Horned Owl Trends in Missouri

No notable trend signals for Great Horned Owl in Missouri. See the full index history below.

Great Horned Owl Population Forecast in Missouri

If the recent trend holds, Great Horned Owl in Missouri is projected to fall about 16% by 2029 — from 0.16 in 2024 to a central estimate of 0.14 (95% range 0.00–0.53). A 5-year backtest shows a typical error of ±52.2%, with 100% of held-out values landing inside the 95% band.

-16%Change by 2029
0.14Projected 2029 index
0.00–0.5395% range
±52.2%Backtest error
19672029
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
20250.160.000.55
20260.160.000.55
20270.150.000.54
20280.140.000.53
20290.140.000.53

Great Horned Owl Survey Routes in Missouri

Routes recording Great Horned Owl in Missouri.
Pineville420241975
Madison419981972
Cassville320021984
Cp Girardeau320222018
Clementine319891974
Frazier320241967
Bolckow319881967
West Plains320222022
Osage Beach320232003
Wesco219921981
Filley220121975
Sni Mills219871976
Rensselaer219711971
Warren219831976
Rockingham219971972
Stet219951972
Miller220222014
Watson220191993
Bennett220091999
Crane220112011
Milford220172017
Richland220172017
Moselle220242017
Sedalia220221992
Deventer120221994

Great Horned Owl Population Trend in Other States

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

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