BirdAnalyst
Species · BCR 30 · BBS 2025 Release · 1966–2024

Sharp-shinned Hawk In New England / Mid-Atlantic Coast

All regionsNew England / Mid-Atlantic CoastGeneralists

Sharp-shinned Hawk in New England / Mid-Atlantic Coast has edged down: down 18% on the route-weighted index since 1973.

-18%Since 1973TrendPercent 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 →
46Routes 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 →
40YearsYears 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 →

No notable trend signals for Sharp-shinned Hawk in New England / Mid-Atlantic Coast. See the full index history below.

Sharp-shinned Hawk In New England / Mid-Atlantic Coast Population Forecast

If the recent trend holds, Sharp-shinned Hawk in New England / Mid-Atlantic Coast is projected to stay roughly flat through 2028, near 0.02 (95% range 0.00–0.05). A 5-year backtest shows a typical error of ±81.6%, with 100% 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 →
0.02Projected 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 →
0.00–0.0595% 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 →
±81.6%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, Sharp-shinned Hawk in New England / Mid-Atlantic Coast is projected to stay roughly flat through 2028, near 0.02 (95% range 0.00–0.05). A 5-year backtest shows a typical error of ±81.6%, with 100% of held-out values landing inside the 95% band.19702028
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 →
20240.020.000.05
20250.020.000.05
20260.020.000.05
20270.020.000.05
20280.020.000.05

Routes In New England / Mid-Atlantic Coast

Routes recording Sharp-shinned Hawk in New England / Mid-Atlantic Coast.
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 →
AlbionNEW-JERSEY52006
ElktonMARYLAND22008
PedricktownNEW-JERSEY21999
MysticCONNECTICUT12000
BuckinghamCONNECTICUT12003
UncasvilleCONNECTICUT12022
WoodstockCONNECTICUT11983
No WoodburyCONNECTICUT11994
ShermanCONNECTICUT12014
Mid HaddamCONNECTICUT12019
SouthingtonCONNECTICUT11996
Mt PleasantDELAWARE11971
HolleyvilleDELAWARE11971
BlackbirdDELAWARE11998
GeorgetownDELAWARE12005
NortheastMARYLAND11997
EastonMARYLAND12009
Golden HillMARYLAND12009
NewarkMARYLAND11971
E DennisMASSACHUSETTS12021
MarionMASSACHUSETTS11996
BrocktonMASSACHUSETTS11997
LittletonMASSACHUSETTS12022
BelchertownMASSACHUSETTS12004
WarrenMASSACHUSETTS12004

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