BirdAnalyst
Species · North Carolina · BBS 2025 Release · 1966–2024

Clapper Rail Population Trend in North Carolina

All statesWetland birds

Clapper Rail in North Carolina has declined: down 47% on the route-weighted index since 1970.

-47%Since 1970
7Routes In State
52Years

Notable Clapper Rail Trends in North Carolina

No notable trend signals for Clapper Rail in North Carolina. See the full index history below.

Clapper Rail Population Forecast in North Carolina

If the recent trend holds, Clapper Rail in North Carolina is projected to rise about 12% by 2029 — from 0.09 in 2024 to a central estimate of 0.10 (95% range 0.00–0.32). A 5-year backtest shows a typical error of ±69.2%, with 100% of held-out values landing inside the 95% band.

+12%Change by 2029
0.10Projected 2029 index
0.00–0.3295% range
±69.2%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
20250.100.000.32
20260.100.000.32
20270.100.000.32
20280.100.000.32
20290.100.000.32

Clapper Rail Survey Routes in North Carolina

Routes recording Clapper Rail in North Carolina.
Merrimon320231973
Myrtle Grove320241966
Supply320241992
Shallotte119911990
Jarvisburg 2120002000
Newport120211995
Milltail Cr119951993

Clapper Rail Population Trend in Other States

alabamaconnecticutdelawarefloridageorgialouisianamarylandnew-jerseynew-yorksouth-carolinatexasvirginia

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