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

Killdeer Population Trend in Colorado

All statesShorebirds

Killdeer in Colorado has fallen sharply: down 66% on the route-weighted index since 1970.

-66%Since 1970
139Routes In State
56Years

Notable Killdeer Trends in Colorado

long arc declinecomputed index

Killdeer has fallen sharply in Colorado: down 66% on the route-weighted index since 1970.

Killdeer Population Forecast in Colorado

If the recent trend holds, Killdeer in Colorado is projected to fall about 32% by 2029 — from 1.7 in 2024 to a central estimate of 1.2 (95% range 0.00–4.1). A 5-year backtest shows a typical error of ±19.6%, with 100% of held-out values landing inside the 95% band.

-32%Change by 2029
1.2Projected 2029 index
0.00–4.195% range
±19.6%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
20251.60.004.6
20261.50.004.5
20271.40.004.3
20281.30.004.2
20291.20.004.1

Killdeer Survey Routes in Colorado

Routes recording Killdeer in Colorado.
Doyle Bridge2719971992
Dolores2119871968
Kirk1720231992
Nunn1520211995
Julesburg1520211998
Hudson1420241988
Fort Morgan1420241996
Pinneo1220191973
Mica Butte1219871971
Fruita1220071988
Pagosa Spgs1119821969
Grover1020241992
Alamosa920241988
Prospect Val920001992
Wildhorse L820241988
Adams Co.820221989
Kiowa720181968
Yellowjacket Pass720241998
Walden620241990
Waverly620191988
Maybell520241970
Fleming520241968
Boyero520171979
Doyleville520231988
Last Chance 2520242017

Killdeer Population Trend in Other States

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

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