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

Northern Mockingbird Population Trend in Colorado

All statesGeneralists

Northern Mockingbird in Colorado has surged: up 207% on the route-weighted index since 1970.

+207%Since 1970
111Routes In State
56Years

Notable Northern Mockingbird Trends in Colorado

long arc increasecomputed index

Northern Mockingbird has surged in Colorado: up 207% on the route-weighted index since 1970.

Northern Mockingbird Population Forecast in Colorado

If the recent trend holds, Northern Mockingbird in Colorado is projected to stay roughly flat through 2029, near 4.2 (95% range 1.8–6.7). A 5-year backtest shows a typical error of ±26.1%, with 100% of held-out values landing inside the 95% band.

-3%Change by 2029
4.2Projected 2029 index
1.8–6.795% range
±26.1%Backtest error
19682029
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
20254.11.76.5
20264.11.76.6
20274.21.76.6
20284.21.86.6
20294.21.86.7

Northern Mockingbird Survey Routes in Colorado

Routes recording Northern Mockingbird in Colorado.
Trinchera14120221990
Crowley9120241989
Ninaview8420241994
Villegreen4420241988
Walsenburg3920241994
Cone Mtn2420241988
Doyle Bridge 22020231998
Mica Butte1919871968
Doyle Bridge1819971992
Ellicott1720241994
Cokedale1420241996
Timpas1320191995
Rush1120241983
Ludlow1020161998
Flagler820242000
Animas 2820212005
Abarr720241968
Gilpin720241970
Two Buttes720151973
Campo720191988
Neegrande720241994
Pritchett720241995
Cortez620081988
Kirk620231999
Haswell620241993

Northern Mockingbird Population Trend in Other States

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

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