BirdAnalyst
Species · BCR 17 · BBS 2025 Release · 1966–2024

Willet In Badlands and Prairies

All regionsBadlands and PrairiesShorebirds

Willet in Badlands and Prairies has surged: up 75% on the route-weighted index since 1971.

+75%Since 1971
43Routes In Region
50Years

Notable Signals

long arc increasecomputed index

Willet has surged in Badlands and Prairies: up 75% on the route-weighted index since 1971.

Forecast

If the recent trend holds, Willet in Badlands and Prairies is projected to rise about 36% by 2029 — from 0.20 in 2024 to a central estimate of 0.27 (95% range 0.06–0.48). A 5-year backtest shows a typical error of ±46.8%, with 100% of held-out values landing inside the 95% band.

+36%Change by 2029
0.27Projected 2029 index
0.06–0.4895% range
±46.8%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
20250.260.050.47
20260.260.050.47
20270.270.050.48
20280.270.060.48
20290.270.060.48

Routes In Badlands and Prairies

Routes recording Willet in Badlands and Prairies.
HighwoodMONTANA92017
IngomarMONTANA52024
RoundupMONTANA42024
OttumwaSOUTH-DAKOTA42009
UptonWYOMING42012
RecluseWYOMING31995
BucknumWYOMING32019
RoyMONTANA22023
Flatwillow 2MONTANA22018
Wheat BasinMONTANA22023
ZapNORTH-DAKOTA21992
Cedar CreekNORTH-DAKOTA22012
BentleyNORTH-DAKOTA22024
Glen UllinNORTH-DAKOTA22021
ArdmoreSOUTH-DAKOTA21978
LacreekSOUTH-DAKOTA22023
CottonwoodSOUTH-DAKOTA22011
NewcastleWYOMING22013
LeroyMONTANA12019
JordanMONTANA12002
Two DotMONTANA12024
ShawmutMONTANA12023
FlatwillowMONTANA11997
LocateMONTANA12008
AlbionMONTANA11994

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