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Species · BCR 14 · BBS 2026 Release · 1966–2025

Pine Siskin In Atlantic Northern Forest

All regionsAtlantic Northern ForestForest birds

Pine Siskin in Atlantic Northern Forest has collapsed: down 90% on the route-weighted index since 1968.

-90%Since 1968TrendPercent 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 →
104Routes In RegionSurvey routesHow many standard-protocol BBS routes contributed counts. More routes means a steadier, better-sampled index; very thin coverage is suppressed.Full methodology →
53YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable SignalsNotable signalsLong-arc shifts the engine flags automatically — sustained declines or increases large enough to stand out from year-to-year noise.Full methodology →

long arc declinecomputed indexTrend sourceWhether the figure is our own computed route-weighted index or an official USGS modeled estimate. The current build labels every trend as computed.Full methodology →

Pine Siskin has collapsed in Atlantic Northern Forest: down 90% on the route-weighted index since 1968.

Pine Siskin In Atlantic Northern Forest Population Forecast

If the recent trend holds, Pine Siskin in Atlantic Northern Forest is projected to rise about 39% by 2030 — from 0.08 in 2025 to a central estimate of 0.11 (95% range 0.00–2.0). A 5-year backtest shows a typical error of ±918.2%, with 100% of held-out values landing inside the 95% band.

+39%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 →
0.11Projected 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 →
0.00–2.095% 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 →
±918.2%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 Atlantic Northern Forest is projected to rise about 39% by 2030 — from 0.08 in 2025 to a central estimate of 0.11 (95% range 0.00–2.0). A 5-year backtest shows a typical error of ±918.2%, with 100% of held-out values landing inside the 95% band.19662030
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 →
20260.170.002.0
20270.160.002.0
20280.140.002.0
20290.130.002.0
20300.110.002.0

Routes In Atlantic Northern Forest

Routes recording Pine Siskin in Atlantic Northern Forest.
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 →
CambridgeMAINE902001
Hope FallsNEW-YORK301968
Dexter LakeNEW-YORK251975
GreensboroVERMONT232005
HartfordMAINE202016
DannemoraNEW-YORK201995
ChesterfieldMASSACHUSETTS171988
Seboomook LkMAINE151997
S ReadingVERMONT142001
Pillsbury PdMAINE131968
Heron LakeMAINE132001
MckeeverNEW-YORK131992
NorthfieldMAINE121980
CharlestonMAINE121992
BoundaryMAINE101997
ClarksvilleNEW-HAMPSHIRE102009
HighmarketNEW-YORK72006
HardwickVERMONT71985
AuroraMAINE61992
HudsonMAINE61992
TelosMAINE61995
Crawford NotNEW-HAMPSHIRE61971
HancockMAINE52012
YankeetuladiMAINE51997
CummingtonMASSACHUSETTS52009

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