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

Dickcissel In New England / Mid-Atlantic Coast

All regionsNew England / Mid-Atlantic CoastGrassland birds

Dickcissel in New England / Mid-Atlantic Coast has edged up: up 18% on the route-weighted index since 1970.

+18%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 →
18Routes 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 →
24YearsYears 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 Dickcissel in New England / Mid-Atlantic Coast. See the full index history below.

Dickcissel In New England / Mid-Atlantic Coast Population Forecast

If the recent trend holds, Dickcissel in New England / Mid-Atlantic Coast is projected to stay roughly flat through 2028, near 0.03 (95% range 0.00–0.06). A 5-year backtest shows a typical error of ±133.5%, 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 →
0.03Projected 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 →
0.00–0.0695% 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 →
±133.5%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, Dickcissel in New England / Mid-Atlantic Coast is projected to stay roughly flat through 2028, near 0.03 (95% range 0.00–0.06). A 5-year backtest shows a typical error of ±133.5%, with 100% of held-out values landing inside the 95% band.19662028
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 →
20240.030.000.06
20250.030.000.06
20260.030.000.06
20270.030.000.06
20280.030.000.06

Routes In New England / Mid-Atlantic Coast

Routes recording Dickcissel 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 →
Mt PleasantDELAWARE42012
HarringtonDELAWARE32000
MillingtonMARYLAND32005
HarmonyMARYLAND31996
CokesburyMARYLAND21997
Port RoyalVIRGINIA22015
Cape CharlesVIRGINIA22013
FredericaDELAWARE12014
BlackbirdDELAWARE12018
PomfretMARYLAND11967
MelitotaMARYLAND12023
Piney NeckMARYLAND11989
MatthewsMARYLAND12021
EastonMARYLAND11966
MadisonMARYLAND12000
ViennaMARYLAND12011
Woodbury HgtNEW-JERSEY11990
QuinbyVIRGINIA12022

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