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

Belted Kingfisher In New England / Mid-Atlantic Coast

All regionsNew England / Mid-Atlantic CoastGeneralists

Belted Kingfisher in New England / Mid-Atlantic Coast has fallen sharply: down 57% on the route-weighted index since 1968.

-57%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 →
129Routes 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 →
58YearsYears 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 →

Belted Kingfisher has fallen sharply in New England / Mid-Atlantic Coast: down 57% on the route-weighted index since 1968.

Belted Kingfisher In New England / Mid-Atlantic Coast Population Forecast

If the recent trend holds, Belted Kingfisher in New England / Mid-Atlantic Coast is projected to stay roughly flat through 2029, near 0.11 (95% range 0.00–0.21). A 5-year backtest shows a typical error of ±58.6%, with 100% of held-out values landing inside the 95% band.

n/aChange by 2029TrendPercent 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 2029 indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →
0.00–0.2195% 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 →
±58.6%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, Belted Kingfisher in New England / Mid-Atlantic Coast is projected to stay roughly flat through 2029, near 0.11 (95% range 0.00–0.21). A 5-year backtest shows a typical error of ±58.6%, with 100% of held-out values landing inside the 95% band.19662029
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 →
20250.120.010.23
20260.120.010.22
20270.110.010.22
20280.110.000.22
20290.110.000.21

Routes In New England / Mid-Atlantic Coast

Routes recording Belted Kingfisher 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 →
La PlataMARYLAND62009
MadisonMARYLAND31987
ViennaMARYLAND32010
GloucesterVIRGINIA32021
FredericaDELAWARE22008
HolleyvilleDELAWARE22001
Cape NeddickMAINE22005
Piney NeckMARYLAND22000
N OxfordMASSACHUSETTS22018
PrincetonMASSACHUSETTS21976
N. AndoverMASSACHUSETTS22023
Cape Cod NsMASSACHUSETTS21999
Six PointsNEW-JERSEY22017
AlbionNEW-JERSEY21988
WesthamptonNEW-YORK22005
HuntingtonNEW-YORK22023
MysticCONNECTICUT11999
E HartlandCONNECTICUT11987
BuckinghamCONNECTICUT12005
UncasvilleCONNECTICUT12013
WestbrookCONNECTICUT12006
WillimanticCONNECTICUT12015
No WoodburyCONNECTICUT12022
ShermanCONNECTICUT12017
GreenwichCONNECTICUT11992

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