BirdAnalyst
Species · BCR 12 · BBS 2025 Release · 1966–2024

Horned Lark In Boreal Hardwood Transition

All regionsBoreal Hardwood TransitionGrassland birds

Horned Lark in Boreal Hardwood Transition has fallen sharply: down 66% on the route-weighted index since 1968.

-66%Since 1968
53Routes In Region
58Years

Notable Signals

long arc declinecomputed index

Horned Lark has fallen sharply in Boreal Hardwood Transition: down 66% on the route-weighted index since 1968.

Forecast

If the recent trend holds, Horned Lark in Boreal Hardwood Transition is projected to stay roughly flat through 2029, near 0.16 (95% range 0.00–0.54). A 5-year backtest shows a typical error of ±270.5%, with 100% of held-out values landing inside the 95% band.

n/aChange by 2029
0.16Projected 2029 index
0.00–0.5495% range
±270.5%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
20250.190.000.57
20260.180.000.56
20270.170.000.55
20280.160.000.55
20290.160.000.54

Routes In Boreal Hardwood Transition

Routes recording Horned Lark in Boreal Hardwood Transition.
BemidjiMINNESOTA71979
Sand LakeMICHIGAN61993
Lake CityMICHIGAN52010
Traverse CtyMICHIGAN51985
HollisterWISCONSIN42007
CunardMICHIGAN21992
Bear LakeMICHIGAN22002
GilchristMICHIGAN21991
IronsMICHIGAN21980
RiggsvilleMICHIGAN21994
SkeelsMICHIGAN21992
Beaver LakeMICHIGAN21969
Cedar RunMICHIGAN21999
Walloon Lake 2MICHIGAN22007
BackusMINNESOTA21983
DebsMINNESOTA21978
LudeMINNESOTA22023
GreenbushMINNESOTA22016
ExelandWISCONSIN22022
GilmanWISCONSIN22023
IrmaWISCONSIN22000
Maple GroveMICHIGAN11990
WilsonMICHIGAN11995
IsabellaMICHIGAN11997
Pleasant ValMICHIGAN11991

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