BirdAnalyst
Species · Maryland · BBS 2025 Release · 1966–2024

Willet Population Trend in Maryland

All statesShorebirds

Willet in Maryland has fallen sharply: down 67% on the route-weighted index since 1968.

-67%Since 1968
9Routes In State
58Years

Notable Willet Trends in Maryland

long arc declinecomputed index

Willet has fallen sharply in Maryland: down 67% on the route-weighted index since 1968.

Willet Population Forecast in Maryland

If the recent trend holds, Willet in Maryland is projected to stay roughly flat through 2029, near 0.13 (95% range 0.00–0.35). A 5-year backtest shows a typical error of ±285%, with 100% of held-out values landing inside the 95% band.

n/aChange by 2029
0.13Projected 2029 index
0.00–0.3595% range
±285%Backtest error
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 index95% low95% high
20250.140.000.36
20260.140.000.35
20270.130.000.35
20280.130.000.35
20290.130.000.35

Willet Survey Routes in Maryland

Routes recording Willet in Maryland.
Pt Republic219871987
Elkton119951995
Golden Hill119931989
Honga120221966
Madison120241966
Cokesbury120162014
Newark120171968
Sinepuxent119751966
Berlin120121986

Willet Population Trend in Other States

alabamacaliforniacoloradoconnecticutdelawarefloridaidaholouisianamainemassachusettsminnesotamontananebraskanevadanew-jerseynew-yorknorth-carolinanorth-dakotaoregonsouth-carolinasouth-dakotatexasutahvirginiawyoming

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