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

American Goshawk Population Trend in New Mexico

All statesGeneralists

American Goshawk in New Mexico has declined: down 45% on the route-weighted index since 1991.

-45%Since 1991TrendPercent change in the route-weighted abundance index between a smoothed baseline window and the most recent one. It tracks direction, not absolute population.Full methodology →
11Routes In StateSurvey routesHow many standard-protocol BBS routes contributed counts. More routes means a steadier, better-sampled index; very thin coverage is suppressed.Full methodology →
21YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable American Goshawk Trends in New MexicoNotable signalsLong-arc shifts the engine flags automatically — sustained declines or increases large enough to stand out from year-to-year noise.Full methodology →

No notable trend signals for American Goshawk in New Mexico. See the full index history below.

American Goshawk Population Forecast in New Mexico

If the recent trend holds, American Goshawk in New Mexico is projected to stay roughly flat through 2028, near 0.01 (95% range 0.00–0.03). A 5-year backtest shows a typical error of ±39%, with 80% of held-out values landing inside the 95% band.

n/aChange by 2028TrendPercent change in the route-weighted abundance index between a smoothed baseline window and the most recent one. It tracks direction, not absolute population.Full methodology →
0.01Projected 2028 indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →
0.00–0.0395% range95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →
±39%Backtest errorBacktest errorTypical error when we hold out the most recent years, forecast them, and compare to what actually happened. Lower means a more trustworthy projection.Full methodology →
If the recent trend holds, American Goshawk in New Mexico is projected to stay roughly flat through 2028, near 0.01 (95% range 0.00–0.03). A 5-year backtest shows a typical error of ±39%, with 80% of held-out values landing inside the 95% band.19882028
Projection of the recent trend (dashed) with 80/95% bands — a projection, not a prediction. Habitat, climate, and land use are not modeled.
YearProjected indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →95% low95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →95% high95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →
20240.020.000.03
20250.020.000.03
20260.010.000.03
20270.010.000.03
20280.010.000.03

American Goshawk Survey Routes in New Mexico

Routes recording American Goshawk in New Mexico.
Recent countThe raw number of individuals recorded on this route in its most recent survey year. A single-route tally, not a trend.Full methodology →
Ojo Sarco119921992
Angel Fire 2120232023
Capitan Mtn.120092009
Emory Pass119941994
Claunch119891989
Angel Fire119971993
Mcgaffey120172017
Mt. Taylor120122010
Vallecitos120122000
Cloudcroft120001988
Mt. Taylor 2120212016

American Goshawk Population Trend in Other States

alaskaarizonacaliforniacoloradoconnecticutidahomainemassachusettsmichiganminnesotamontananevadanew-hampshirenew-jerseynew-yorkoregonpennsylvaniarhode-islandsouth-dakotautahvermontwashingtonwisconsinwyoming

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