Species · BBS 2025 Release · 1966–2024

Western Meadowlark

IcteridaeGrassland birdsSturnella neglecta

Western Meadowlark has edged up: up 10% on the route-weighted index since 1968.

About the Western Meadowlark

The Western Meadowlark (Sturnella neglecta) is a North American member of the Blackbirds & Orioles (Icteridae). In this analysis it is grouped with the grassland birds.

Size
6.5–17 in long (16–43 cm) — a small to medium songbird (typical for the family)
Habitat
Open grasslands, prairie, pasture and hayfields.
Diet
Seeds and insects gathered from grasses and the ground.
Range
Recorded on 1,927 Breeding Bird Survey routes across 28 states, most concentrated in the Great Basin.
Family
Icteridae · Grassland birds

Notable Western Meadowlark TrendsNotable signalsLong-arc shifts the engine flags automatically — sustained declines or increases large enough to stand out from year-to-year noise.Full methodology →

No notable trend signals for Western Meadowlark. See the full index history below.

Western Meadowlark Population Forecast

If the recent trend holds, Western Meadowlark is projected to stay roughly flat through 2029, near 17 (95% range 11–24). A 5-year backtest shows a typical error of ±8.7%, with 100% of held-out values landing inside the 95% band.

If the recent trend holds, Western Meadowlark is projected to stay roughly flat through 2029, near 17 (95% range 11–24). A 5-year backtest shows a typical error of ±8.7%, with 100% of held-out values landing inside the 95% band.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 indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →95% low95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →95% high95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →
2025181124
2026181124
2027171124
2028171124
2029171124

Where the Western Meadowlark Is Detected

BBS routes recording Western Meadowlark, sized by most recent count.

Western Meadowlark Population Trend by State

Western Meadowlark population trend by state.
TrendPercent change in the route-weighted abundance index between a smoothed baseline window and the most recent one. It tracks direction, not absolute population.Full methodology →Baseline yearThe first year of the smoothed window the trend is measured from. An earlier baseline means a longer record stands behind the number.Full methodology →Survey routesHow many standard-protocol BBS routes contributed counts. More routes means a steadier, better-sampled index; very thin coverage is suppressed.Full methodology →
Arizona-2%197063
California-57%1970208
Colorado-47%1970147
Idaho-47%197055
Illinois-98%196868
Indiana-98%196819
Iowa-95%196939
Kansas-66%196961
Kentuckyinsufficient datan/a2
Michigan-98%196852
Minnesota-93%196972
Missouri-97%196934
Montana-13%1970108
Nebraska-22%196976
Nevada-2%197049
New Mexico-49%197080
New Yorkinsufficient datan/a3
North Dakota-38%196951
Ohio-91%196818
Oklahoma+19%196946
Oregon-37%1970109
Pennsylvaniainsufficient datan/a2
South Dakota-28%196963
Texas+25%1969100
Utah+39%1970109
Washington+47%197078
Wisconsin-100%196883
Wyoming-18%1970132

Western Meadowlark Population Trend by Region

Bird Conservation Regions are the ecological unit for trends.

Western Meadowlark population trend by Bird Conservation Region.
TrendPercent change in the route-weighted abundance index between a smoothed baseline window and the most recent one. It tracks direction, not absolute population.Full methodology →Baseline yearThe first year of the smoothed window the trend is measured from. An earlier baseline means a longer record stands behind the number.Full methodology →Survey routesHow many standard-protocol BBS routes contributed counts. More routes means a steadier, better-sampled index; very thin coverage is suppressed.Full methodology →
Northern Pacific Rainforest-80%197063
Great Basin-7%1970246
Northern Rockies-24%1970200
Prairie Potholes-54%1969124
Boreal Hardwood Transition-64%196863
Sierra Nevada+101%197121
Southern Rockies / Colorado Plateau-18%1970218
Badlands and Prairies-17%1969138
Shortgrass Prairie-31%1969135
Central Mixed Grass Prairie-53%1969124
Edwards Plateau+132%19796
Oaks and Prairies-92%196928
Eastern Tallgrass Prairie-94%1968182
Prairie Hardwood Transition-100%1968125
Central Hardwoods-21%19729
Coastal California-77%1970110
Sonoran and Mojave Deserts+25%197057
Sierra Madre Occidental+29%197024
Chihuahuan Desert-78%197038

Western Meadowlark Conservation Status

Our route-weighted index shows it up about 10% since 1968. Grassland birds are North America's steepest-declining group, down roughly 50% since 1970 as prairie and pasture were lost.

Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22. Trend is a route-weighted relative-abundance index, not an absolute population.