BirdAnalyst
Guild · Massachusetts · BBS 2025 Release · 1966–2024

Grassland Birds In Massachusetts

All statesMassachusetts

6 species in this guild. As a group they are -80% since 1968.

Guild Signals

guild collapsecomputed index

Grassland birds as a group have collapsed in Massachusetts, down 80% since 1968.

Forecast

If the recent trend holds, Grassland birds in Massachusetts is projected to fall about 100% by 2029 — from 1.2 in 2024 to a central estimate of 0.00 (95% range 0.00–1.2). A 5-year backtest shows a typical error of ±90.5%, with 80% of held-out values landing inside the 95% band.

-100%Change by 2029
0.00Projected 2029 index
0.00–1.295% range
±90.5%Backtest error
19662029
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
20250.140.001.4
20260.090.001.3
20270.040.001.2
20280.000.001.2
20290.000.001.2

Member Species In Massachusetts

Grassland birds species in Massachusetts.
Northern BobwhiteOdontophoridae-100%
Eastern MeadowlarkIcteridae-98%
Ring-necked PheasantPhasianidae-96%
Vesper SparrowPasserellidae-79%
BobolinkIcteridae-44%
Savannah SparrowPasserellidae-26%

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