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

Great Horned Owl Population Trend in Nevada

All statesGeneralists

Great Horned Owl in Nevada has surged: up 109% on the route-weighted index since 1974.

+109%Since 1974
19Routes In State
33Years

Notable Great Horned Owl Trends in Nevada

long arc increasecomputed index

Great Horned Owl has surged in Nevada: up 109% on the route-weighted index since 1974.

Great Horned Owl Population Forecast in Nevada

If the recent trend holds, Great Horned Owl in Nevada is projected to fall about 40% by 2029 — from 0.18 in 2024 to a central estimate of 0.11 (95% range 0.00–0.43). A 5-year backtest shows a typical error of ±44.6%, with 100% of held-out values landing inside the 95% band.

-40%Change by 2029
0.11Projected 2029 index
0.00–0.4395% range
±44.6%Backtest error
19692029
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
20250.110.000.43
20260.110.000.43
20270.110.000.43
20280.110.000.43
20290.110.000.43

Great Horned Owl Survey Routes in Nevada

Routes recording Great Horned Owl in Nevada.
Ruby Valley 2220212009
Nelson220242006
Gardnerville 2220152015
Piute Mdws120212021
Midas119991999
Ranchogrande119961992
Sand Pass119941994
Humboldt Nf120152015
Cortez120162016
Walker Can120241969
Mizpah120242024
Meadow Vally119961996
Majors Place119991996
Gardnerville120021995
Dobbin Creek119781978
Jarbidge120062006
Bald Mtn.120011992
Chimney Res.120242013
Fallon120221993

Great Horned Owl Population Trend in Other States

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

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