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

Horned Lark Population Trend in Maryland

All statesGrassland birds

Horned Lark in Maryland has fallen sharply: down 51% on the route-weighted index since 1968.

-51%Since 1968
66Routes In State
58Years

Notable Horned Lark Trends in Maryland

long arc declinecomputed index

Horned Lark has fallen sharply in Maryland: down 51% on the route-weighted index since 1968.

Horned Lark Population Forecast in Maryland

If the recent trend holds, Horned Lark in Maryland is projected to rise about 50% by 2029 — from 1.7 in 2024 to a central estimate of 2.6 (95% range 1.1–4.0). A 5-year backtest shows a typical error of ±28.1%, with 100% of held-out values landing inside the 95% band.

+50%Change by 2029
2.6Projected 2029 index
1.1–4.095% range
±28.1%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
20252.61.24.1
20262.61.24.1
20272.61.14.1
20282.61.14.0
20292.61.14.0

Horned Lark Survey Routes in Maryland

Routes recording Horned Lark in Maryland.
Harmony3620171966
Snow Hill2719761966
Grove Neck1419961992
Easton1020211966
Vienna1020241966
Cokesbury1020241966
Sinepuxent1019781966
Melitota920241966
Millington820241967
Piney Neck820241966
Indiantown820141977
Williamsport720241966
Emmitsburg620241967
Fruitland619981966
Furnace Town320242015
Mt Nebo219911969
Olney220241966
Warfieldsbrg220181966
Fowblesburg220171967
Walnut220191999
Largo219771977
Cheltenham219831966
Hughesville220141968
Golden Hill220241966
Honga220241966

Horned Lark Population Trend in Other States

alabamaalaskaarizonaarkansascaliforniacoloradoconnecticutdelawaregeorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming

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