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

Blue Grosbeak In Prairie Potholes

All regionsPrairie PotholesGeneralists

Blue Grosbeak in Prairie Potholes has surged: up 148% on the route-weighted index since 1969.

+148%Since 1969
31Routes In Region
57Years

Notable Signals

long arc increasecomputed index

Blue Grosbeak has surged in Prairie Potholes: up 148% on the route-weighted index since 1969.

Forecast

If the recent trend holds, Blue Grosbeak in Prairie Potholes is projected to fall about 35% by 2029 — from 0.51 in 2024 to a central estimate of 0.33 (95% range 0.04–0.62). A 5-year backtest shows a typical error of ±64.5%, with 0% of held-out values landing inside the 95% band.

-35%Change by 2029
0.33Projected 2029 index
0.04–0.6295% range
±64.5%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
20250.320.030.61
20260.320.030.61
20270.330.040.61
20280.330.040.62
20290.330.040.62

Routes In Prairie Potholes

Routes recording Blue Grosbeak in Prairie Potholes.
MidwayNEBRASKA122023
HowardSOUTH-DAKOTA102024
SpartaNEBRASKA72021
Eagle CreekNEBRASKA62024
ChandlerMINNESOTA52023
VolgaSOUTH-DAKOTA52024
Winside 2NEBRASKA42022
TrippSOUTH-DAKOTA42023
TildenNEBRASKA32024
ScrantonIOWA22021
ClareIOWA22019
HuntleyMINNESOTA22024
WorthingtonMINNESOTA22024
TracyMINNESOTA22024
Chokio NorthMINNESOTA22011
WinsideNEBRASKA22002
PoncaNEBRASKA22024
LennoxSOUTH-DAKOTA22024
GeddesSOUTH-DAKOTA22018
MccallsburgIOWA12024
Redwood FallMINNESOTA12015
GluekMINNESOTA12018
GlyndonMINNESOTA12012
TylerMINNESOTA12024
Douglas CrkNORTH-DAKOTA12022

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