BirdAnalyst
Species · New Mexico · BBS 2026 Release · 1966–2025

Pine Siskin Population Trend in New Mexico

All statesForest birds

Pine Siskin in New Mexico has declined: down 32% on the route-weighted index since 1970.

-32%Since 1970TrendPercent 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 →
27Routes 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 →
57YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable Pine Siskin 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 Pine Siskin in New Mexico. See the full index history below.

Pine Siskin Population Forecast in New Mexico

If the recent trend holds, Pine Siskin in New Mexico is projected to rise about 62% by 2030 — from 0.68 in 2025 to a central estimate of 1.1 (95% range 0.00–2.8). A 5-year backtest shows a typical error of ±55.4%, with 100% of held-out values landing inside the 95% band.

+62%Change by 2030TrendPercent 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 →
1.1Projected 2030 indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →
0.00–2.895% 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 →
±55.4%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, Pine Siskin in New Mexico is projected to rise about 62% by 2030 — from 0.68 in 2025 to a central estimate of 1.1 (95% range 0.00–2.8). A 5-year backtest shows a typical error of ±55.4%, with 100% of held-out values landing inside the 95% band.19682030
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 →
20261.10.002.8
20271.10.002.8
20281.10.002.8
20291.10.002.8
20301.10.002.8

Pine Siskin Survey Routes in New Mexico

Routes recording Pine Siskin 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 →
Angel Fire1820021992
Angel Fire 21520252005
Mt. Taylor1320121993
Mt. Taylor 21220242014
Cloudcroft820251981
Ojo Sarco620251968
Stinking Lk.619971992
Cebolla520221973
Pecos320171973
Crownpoint219691969
Claunch219981977
Horse Mtn219731973
Emory Pass220182002
Grenville119991999
La Cienega119701970
Fence Lake120182016
Valencia119961992
Horse Spgs120182008
Shiprock120101999
Mcgaffey120071994
Vallecitos120241994
Gallinas120251992
Reserve120211993
Pinon120091992
Bluewater Lake120191999

Pine Siskin Population Trend in Other States

alaskaarizonacaliforniacoloradoconnecticutidahoiowamainemarylandmassachusettsmichiganminnesotamontananebraskanevadanew-hampshirenew-yorknorth-carolinanorth-dakotaohiooregonpennsylvaniarhode-islandsouth-dakotatennesseeutahvermontvirginiawashingtonwest-virginiawisconsinwyoming

Source: USGS North American Breeding Bird Survey, retrieved 2026-08-14.