BirdAnalyst
Species · BCR 22 · BBS 2025 Release · 1966–2024

Least Tern In Eastern Tallgrass Prairie

All regionsEastern Tallgrass PrairieWetland birds

Least Tern in Eastern Tallgrass Prairie has held roughly steady: up 8% on the route-weighted index since 1997.

+8%Since 1997
7Routes In Region
20Years

Notable Signals

No notable trend signals for Least Tern in Eastern Tallgrass Prairie. See the full index history below.

Forecast

If the recent trend holds, Least Tern in Eastern Tallgrass Prairie is projected to stay roughly flat through 2029, near 0.02 (95% range 0.00–0.03). A 5-year backtest shows a typical error of ±41.7%, with 100% of held-out values landing inside the 95% band.

n/aChange by 2029
0.02Projected 2029 index
0.00–0.0395% range
±41.7%Backtest error
19752029
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
20250.020.000.03
20260.020.000.03
20270.020.000.03
20280.020.000.03
20290.020.000.03

Routes In Eastern Tallgrass Prairie

Routes recording Least Tern in Eastern Tallgrass Prairie.
GulfportILLINOIS32021
RichlandNEBRASKA22024
Gretna 2NEBRASKA22023
WainwrightOKLAHOMA21992
MelroseKANSAS11975
SeveranceKANSAS12010
GretnaNEBRASKA12017

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