BirdAnalyst
Species · BCR 30 · BBS 2026 Release · 1966–2025

American Oystercatcher In New England / Mid-Atlantic Coast

All regionsNew England / Mid-Atlantic CoastShorebirds

American Oystercatcher in New England / Mid-Atlantic Coast has declined: down 33% on the route-weighted index since 1983.

-33%Since 1983TrendPercent 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 →
7Routes 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 →
34YearsYears 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 American Oystercatcher in New England / Mid-Atlantic Coast. See the full index history below.

American Oystercatcher In New England / Mid-Atlantic Coast Population Forecast

If the recent trend holds, American Oystercatcher in New England / Mid-Atlantic Coast is projected to stay roughly flat through 2030, near 0.03 (95% range 0.00–0.13). A 5-year backtest shows a typical error of ±58.1%, with 100% of held-out values landing inside the 95% band.

n/aChange 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 →
0.03Projected 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 →
0.00–0.1395% 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 →
±58.1%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, American Oystercatcher in New England / Mid-Atlantic Coast is projected to stay roughly flat through 2030, near 0.03 (95% range 0.00–0.13). A 5-year backtest shows a typical error of ±58.1%, with 100% of held-out values landing inside the 95% band.19802030
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 →
20260.040.000.13
20270.040.000.13
20280.040.000.13
20290.030.000.13
20300.030.000.13

Routes In New England / Mid-Atlantic Coast

Routes recording American Oystercatcher 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 →
Cape CharlesVIRGINIA31997
Bethany BchDELAWARE21990
Ocean CityNEW-JERSEY22025
ChilmarkMASSACHUSETTS11983
Gay HeadMASSACHUSETTS12024
Jones BeachNEW-YORK11986
Block IslandRHODE-ISLAND12009

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