BirdAnalyst
Species · BCR 11 · BBS 2025 Release · 1966–2024

American Bittern In Prairie Potholes

All regionsPrairie PotholesWetland birds

American Bittern in Prairie Potholes has edged up: up 13% on the route-weighted index since 1969.

+13%Since 1969
87Routes In Region
57Years

Notable Signals

No notable trend signals for American Bittern in Prairie Potholes. See the full index history below.

Forecast

If the recent trend holds, American Bittern in Prairie Potholes is projected to stay roughly flat through 2029, near 0.99 (95% range 0.24–1.7). A 5-year backtest shows a typical error of ±49.7%, with 80% of held-out values landing inside the 95% band.

+2%Change by 2029
0.99Projected 2029 index
0.24–1.795% range
±49.7%Backtest error
19672029
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
20250.980.241.7
20260.980.241.7
20270.980.241.7
20280.990.241.7
20290.990.241.7

Routes In Prairie Potholes

Routes recording American Bittern in Prairie Potholes.
Danzig 2NORTH-DAKOTA162024
White LakeSOUTH-DAKOTA132011
CooperstownNORTH-DAKOTA112024
Sheyenne LkNORTH-DAKOTA102024
Horsehead LkNORTH-DAKOTA92024
BuchananNORTH-DAKOTA82024
Crow CreekSOUTH-DAKOTA62019
Lake BronsonMINNESOTA42011
LakotaNORTH-DAKOTA42009
Lakota 2NORTH-DAKOTA42024
GettysburgSOUTH-DAKOTA42023
Long LakeSOUTH-DAKOTA42019
Lane 2SOUTH-DAKOTA42010
GryglaMINNESOTA32011
FormanNORTH-DAKOTA32024
DenbighNORTH-DAKOTA32022
VeblenSOUTH-DAKOTA32022
ChandlerMINNESOTA21984
CourtlandMINNESOTA21991
MaynardMINNESOTA21969
ChokioMINNESOTA22022
TenneyMINNESOTA21980
ErieMINNESOTA22010
Chokio NorthMINNESOTA22014
Ester LakeMONTANA22023

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