Species · BCR 22 · BBS 2025 Release · 1966–2024
Pied-billed Grebe In Eastern Tallgrass Prairie
Pied-billed Grebe in Eastern Tallgrass Prairie has fallen sharply: down 61% on the route-weighted index since 1969.
-61%Since 1969
34Routes In Region
45Years
Notable Signals
No notable trend signals for Pied-billed Grebe in Eastern Tallgrass Prairie. See the full index history below.
Forecast
If the recent trend holds, Pied-billed Grebe in Eastern Tallgrass Prairie is projected to stay roughly flat through 2028, near 0.00 (95% range 0.00–0.04). A 5-year backtest shows a typical error of ±54.5%, with 100% of held-out values landing inside the 95% band.
n/aChange by 2028
0.00Projected 2028 index
0.00–0.0495% range
±54.5%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2024 | 0.00 | 0.00 | 0.04 |
| 2025 | 0.00 | 0.00 | 0.04 |
| 2026 | 0.00 | 0.00 | 0.04 |
| 2027 | 0.00 | 0.00 | 0.04 |
| 2028 | 0.00 | 0.00 | 0.04 |
Routes In Eastern Tallgrass Prairie
| Gary | INDIANA | 3 | 1981 |
| Chandlervill | ILLINOIS | 2 | 1986 |
| Minonk | ILLINOIS | 2 | 2010 |
| Troy Grove | ILLINOIS | 2 | 2002 |
| Seneca | KANSAS | 2 | 2021 |
| Itasca | ILLINOIS | 1 | 2000 |
| Geneseo | ILLINOIS | 1 | 1973 |
| Sheffield | ILLINOIS | 1 | 1970 |
| New Lenox | ILLINOIS | 1 | 1982 |
| Belleview | ILLINOIS | 1 | 1999 |
| Mt Vernon | ILLINOIS | 1 | 1982 |
| Olney | ILLINOIS | 1 | 2013 |
| Grape Creek | ILLINOIS | 1 | 2018 |
| Hebron | INDIANA | 1 | 1968 |
| W Lafayette | INDIANA | 1 | 1994 |
| Tipton | INDIANA | 1 | 1983 |
| Portage | INDIANA | 1 | 2000 |
| Kankakee Sands | INDIANA | 1 | 2023 |
| Brooklyn | IOWA | 1 | 1971 |
| Hudson | IOWA | 1 | 1984 |
| Pierson | IOWA | 1 | 2017 |
| Sioux City | IOWA | 1 | 2018 |
| Gaza | IOWA | 1 | 2014 |
| Rock Valley | IOWA | 1 | 1993 |
| Lapland | KANSAS | 1 | 2001 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.