BirdAnalyst
Species · New Jersey · BBS 2025 Release · 1966–2024

Killdeer Population Trend in New Jersey

All statesShorebirds

Killdeer in New Jersey has risen sharply: up 73% on the route-weighted index since 1968.

+73%Since 1968
40Routes In State
58Years

Notable Killdeer Trends in New Jersey

long arc increasecomputed index

Killdeer has risen sharply in New Jersey: up 73% on the route-weighted index since 1968.

Killdeer Population Forecast in New Jersey

If the recent trend holds, Killdeer in New Jersey is projected to stay roughly flat through 2029, near 1.3 (95% range 0.00–2.7). A 5-year backtest shows a typical error of ±61.2%, with 100% of held-out values landing inside the 95% band.

+9%Change by 2029
1.3Projected 2029 index
0.00–2.795% range
±61.2%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
20251.30.002.7
20261.30.002.7
20271.30.002.7
20281.30.002.7
20291.30.002.7

Killdeer Survey Routes in New Jersey

Routes recording Killdeer in New Jersey.
Woodbury Hgt820241970
Pedricktown 2720242013
Cape May Ch720111992
Deepwater519771969
Dover520231977
Mt Misery519821976
Albion420221966
Pedricktown420121991
Hope319941971
Pottersville320211977
Cranbury320221987
Winslow320241989
Bennett Mill 2320242016
Holmansville220091975
New Bedford220171975
Croton220071970
Keyport220151990
Croton 2220242008
Ramseysburg220211995
Greenwich120241966
Six Points120231978
Toms River120221975
Ancora119661966
Masonville119701966
Bennett Mill119991972

Killdeer Population Trend in Other States

alabamaalaskaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming

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