BirdAnalyst
Species · BCR 19 · BBS 2025 Release · 1966–2024

Pied-billed Grebe In Central Mixed Grass Prairie

All regionsCentral Mixed Grass PrairieWetland birds

Pied-billed Grebe in Central Mixed Grass Prairie has risen sharply: up 69% on the route-weighted index since 1970.

+69%Since 1970
24Routes In Region
48Years

Notable Signals

long arc increasecomputed index

Pied-billed Grebe has risen sharply in Central Mixed Grass Prairie: up 69% on the route-weighted index since 1970.

Forecast

If the recent trend holds, Pied-billed Grebe in Central Mixed Grass Prairie is projected to rise about 39% by 2029 — from 0.12 in 2024 to a central estimate of 0.17 (95% range 0.00–0.36). A 5-year backtest shows a typical error of ±175.1%, with 60% of held-out values landing inside the 95% band.

+39%Change by 2029
0.17Projected 2029 index
0.00–0.3695% range
±175.1%Backtest error
19682029
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
20250.160.000.35
20260.160.000.36
20270.160.000.36
20280.160.000.36
20290.170.000.36

Routes In Central Mixed Grass Prairie

Routes recording Pied-billed Grebe in Central Mixed Grass Prairie.
Swan LakeNEBRASKA232021
JewellKANSAS71994
Crescent LkNEBRASKA52017
TableNEBRASKA42024
AlbertKANSAS22019
KennedyNEBRASKA22024
GordonNEBRASKA22018
HollisOKLAHOMA22015
WeinertTEXAS21992
KanopolisKANSAS11982
LoganKANSAS12010
MisslerKANSAS11999
BerwetKANSAS12016
StrattonNEBRASKA12013
JohnstownNEBRASKA11969
Piester LakeNEBRASKA12018
ArthurNEBRASKA12019
BrownleeNEBRASKA12018
Wheeler CoNEBRASKA12024
NenzelNEBRASKA12024
HamptonNEBRASKA12019
GrimesOKLAHOMA12016
ErickOKLAHOMA12015
HaskellTEXAS12018

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