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

Carolina Wren Population Trend in New Jersey

All statesForest birds

Carolina Wren in New Jersey has surged: up 54× on the route-weighted index since 1968.

54×Since 1968
42Routes In State
58Years

Notable Carolina Wren Trends in New Jersey

long arc increasecomputed index

Carolina Wren has surged in New Jersey: up 54× on the route-weighted index since 1968.

Carolina Wren Population Forecast in New Jersey

If the recent trend holds, Carolina Wren in New Jersey is projected to fall about 19% by 2029 — from 16 in 2024 to a central estimate of 13 (95% range 8.7–18). A 5-year backtest shows a typical error of ±31.3%, with 20% of held-out values landing inside the 95% band.

-19%Change by 2029
13Projected 2029 index
8.7–1895% range
±31.3%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
2025127.717
2026138.017
2027138.218
2028138.518
2029138.718

Carolina Wren Survey Routes in New Jersey

Routes recording Carolina Wren in New Jersey.
Cape May Ch6220131992
Woodbury Hgt3720241968
Pedricktown 23420242013
Six Points3220241980
Croton 23120242008
Pedricktown2920121991
Ramseysburg2720241995
Sandbrook2420241974
Kemah Lake2320241986
Bennett Mill 22120242016
Del Haven1919911991
New Bedford1920241969
Greenwich1820241968
Dover1620231990
Winslow1620241989
Gillette1420241991
Roosevelt1420221986
Pomona1420241978
Croton1320071975
Albion1220221966
Holmansville1120091971
Bloomsbury1120241976
Ocean City1020221995
Keyport920221990
Deepwater619761969

Carolina Wren Population Trend in Other States

alabamaarkansasconnecticutdelawarefloridageorgiaillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourinebraskanew-hampshirenew-yorknorth-carolinaohiooklahomapennsylvaniarhode-islandsouth-carolinatennesseetexasvermontvirginiawest-virginiawisconsin

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