BirdAnalyst
Species · New Mexico · BBS 2025 Release · 1966–2024

Common Grackle Population Trend in New Mexico

All statesGeneralists

Common Grackle in New Mexico has fallen sharply: down 73% on the route-weighted index since 1972.

-73%Since 1972
26Routes In State
54Years

Notable Common Grackle Trends in New Mexico

long arc declinecomputed index

Common Grackle has fallen sharply in New Mexico: down 73% on the route-weighted index since 1972.

Common Grackle Population Forecast in New Mexico

If the recent trend holds, Common Grackle in New Mexico is projected to fall about 10% by 2029 — from 0.39 in 2024 to a central estimate of 0.35 (95% range 0.00–1.2). A 5-year backtest shows a typical error of ±78.3%, with 100% of held-out values landing inside the 95% band.

-10%Change by 2029
0.35Projected 2029 index
0.00–1.295% range
±78.3%Backtest error
19702029
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
20250.400.001.2
20260.390.001.2
20270.370.001.2
20280.360.001.2
20290.350.001.2

Common Grackle Survey Routes in New Mexico

Routes recording Common Grackle in New Mexico.
Cooley Lake1520241972
Capulin819931993
Valencia619971970
Tucumcari519751975
Floyd520182018
Angel Fire520021993
Roswell419711971
Variadero420082003
Horse Mtn319931993
Pep320192003
Grenville220241980
Sedan220231996
Vallecitos220011998
Gallinas220161992
Rosebud220232010
Pastura220162002
Cebolla120051982
Ojo Sarco120171999
Farley120242000
Pecos120101994
Angel Fire 2120182005
Maxwell120191997
Clovis120182003
Laborcita119931993
La Plata120052005

Common Grackle Population Trend in Other States

alabamaarkansascoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-yorknorth-carolinanorth-dakotaohiooklahomapennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawest-virginiawisconsinwyoming

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