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

Sedge Wren Population Trend in Michigan

All statesGrassland birds

Sedge Wren in Michigan has fallen sharply: down 74% on the route-weighted index since 1968.

-74%Since 1968
68Routes In State
58Years

Notable Sedge Wren Trends in Michigan

long arc declinecomputed index

Sedge Wren has fallen sharply in Michigan: down 74% on the route-weighted index since 1968.

Sedge Wren Population Forecast in Michigan

If the recent trend holds, Sedge Wren in Michigan is projected to fall about 51% by 2029 — from 0.23 in 2024 to a central estimate of 0.12 (95% range 0.00–0.52). A 5-year backtest shows a typical error of ±96.8%, with 100% of held-out values landing inside the 95% band.

-51%Change by 2029
0.12Projected 2029 index
0.00–0.5295% range
±96.8%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
20250.140.000.54
20260.130.000.54
20270.130.000.53
20280.120.000.52
20290.120.000.52

Sedge Wren Survey Routes in Michigan

Routes recording Sedge Wren in Michigan.
Pickford620241974
Lake City420101970
Coopersville420062006
Ontonagon320122012
Raco320001972
Brocky Lake220241981
Cunard220161985
Hamburg 2220062006
Skegemog Pt220031988
Big Rapids219881968
Riggsville219941968
Oberlin220081973
Bell Oak219811967
Prattville220041987
North Branch219981988
Pettysville219761976
Waldenburg219821976
Bergland119871986
Marenisco120191985
Bootjack120061968
Ned Lake120241994
Herman119931983
Hungerford120221992
Gibbs City120241993
Maple Grove120171967

Sedge Wren Population Trend in Other States

connecticutdelawareillinoisindianaiowakansaskentuckymainemarylandmassachusettsminnesotamissourimontananebraskanew-hampshirenew-yorknorth-dakotaohiopennsylvaniasouth-dakotavermontvirginiawisconsin

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