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

Willet In New England / Mid-Atlantic Coast

All regionsNew England / Mid-Atlantic CoastShorebirds

Willet in New England / Mid-Atlantic Coast has edged down: down 19% on the route-weighted index since 1968.

-19%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 →
37Routes 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 →

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

Willet In New England / Mid-Atlantic Coast Population Forecast

If the recent trend holds, Willet in New England / Mid-Atlantic Coast is projected to rise about 37% by 2029 — from 0.58 in 2024 to a central estimate of 0.79 (95% range 0.00–1.8). A 5-year backtest shows a typical error of ±79%, with 100% of held-out values landing inside the 95% band.

+37%Change 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 →
0.79Projected 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 →
0.00–1.895% 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 →
±79%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, Willet in New England / Mid-Atlantic Coast is projected to rise about 37% by 2029 — from 0.58 in 2024 to a central estimate of 0.79 (95% range 0.00–1.8). A 5-year backtest shows a typical error of ±79%, 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 →
20250.820.001.8
20260.810.001.8
20270.800.001.8
20280.800.001.8
20290.790.001.8

Routes In New England / Mid-Atlantic Coast

Routes recording Willet 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 →
Bethany BchDELAWARE841990
MiltonDELAWARE181975
Ocean CityNEW-JERSEY182024
HarringtonDELAWARE142024
Jones BeachNEW-YORK102013
Lowes XrdsDELAWARE81991
BlackbirdDELAWARE32023
Wellfleet 2MASSACHUSETTS32024
Chincoteag WVIRGINIA32024
WestbrookCONNECTICUT22024
DoverDELAWARE21979
PepperboxDELAWARE22016
GeorgetownDELAWARE22022
Pt RepublicMARYLAND21987
WellfleetMASSACHUSETTS22005
BrocktonMASSACHUSETTS22018
NewburyportMASSACHUSETTS22022
Gay HeadMASSACHUSETTS22004
MysticCONNECTICUT12009
Pepperbox 2DELAWARE12024
Kittery PtMAINE12024
ElktonMARYLAND11995
Golden HillMARYLAND11993
HongaMARYLAND12022
MadisonMARYLAND12024

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