BirdAnalyst
Species · BCR 30 · BBS 2025 Release · 1966–2024

Bobolink In New England / Mid-Atlantic Coast

All regionsNew England / Mid-Atlantic CoastGrassland birds

Bobolink in New England / Mid-Atlantic Coast has collapsed: down 78% on the route-weighted index since 1968.

-78%Since 1968
51Routes In Region
58Years

Notable Signals

long arc declinecomputed index

Bobolink has collapsed in New England / Mid-Atlantic Coast: down 78% on the route-weighted index since 1968.

Forecast

If the recent trend holds, Bobolink in New England / Mid-Atlantic Coast is projected to rise about 51% by 2029 — from 0.14 in 2024 to a central estimate of 0.22 (95% range 0.00–0.60). A 5-year backtest shows a typical error of ±52.4%, with 100% of held-out values landing inside the 95% band.

+51%Change by 2029
0.22Projected 2029 index
0.00–0.6095% range
±52.4%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
20250.290.000.68
20260.280.000.66
20270.260.000.64
20280.240.000.62
20290.220.000.60

Routes In New England / Mid-Atlantic Coast

Routes recording Bobolink in New England / Mid-Atlantic Coast.
DoverNEW-HAMPSHIRE112023
Woodstock 2CONNECTICUT102019
PrincetonMASSACHUSETTS101976
Cape NeddickMAINE82022
WarrenMASSACHUSETTS82009
BuckinghamCONNECTICUT52014
ShermanCONNECTICUT52019
BelchertownMASSACHUSETTS42024
BrentwoodNEW-HAMPSHIRE41998
UncasvilleCONNECTICUT32024
DanburyCONNECTICUT31989
Kittery PtMAINE32008
EpsomNEW-HAMPSHIRE32016
ClarksvilleNEW-JERSEY31978
WoodstockCONNECTICUT22007
WestbrookCONNECTICUT21993
GranbyCONNECTICUT22019
MarionMASSACHUSETTS22019
LittletonMASSACHUSETTS22015
MansfieldMASSACHUSETTS21990
E PepperellMASSACHUSETTS21992
Warren 2MASSACHUSETTS22019
MasonvilleNEW-JERSEY21966
New BedfordNEW-JERSEY21974
Sachuest PtRHODE-ISLAND21973

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