BirdAnalyst
Species · BCR 14 · BBS 2025 Release · 1966–2024

American Bittern In Atlantic Northern Forest

All regionsAtlantic Northern ForestWetland birds

American Bittern in Atlantic Northern Forest has declined: down 36% on the route-weighted index since 1968.

-36%Since 1968
117Routes In Region
58Years

Notable Signals

No notable trend signals for American Bittern in Atlantic Northern Forest. See the full index history below.

Forecast

If the recent trend holds, American Bittern in Atlantic Northern Forest is projected to rise about 21% by 2029 — from 0.19 in 2024 to a central estimate of 0.23 (95% range 0.06–0.41). A 5-year backtest shows a typical error of ±31.9%, with 100% of held-out values landing inside the 95% band.

+21%Change by 2029
0.23Projected 2029 index
0.06–0.4195% range
±31.9%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
20250.240.070.41
20260.240.070.41
20270.240.060.41
20280.240.060.41
20290.230.060.41

Routes In Atlantic Northern Forest

Routes recording American Bittern in Atlantic Northern Forest.
WashburnMAINE52005
St DavidMAINE42005
Northfield 2MAINE41992
NorthfieldMAINE31980
HudsonMAINE32009
Pillsbury PdMAINE31968
Dixvil NotchNEW-HAMPSHIRE32017
W RutlandVERMONT32024
NewcastleMAINE22007
HartfordMAINE22012
ManchesterMAINE21982
FreedomMAINE22022
HarmonyMAINE22022
EastbrookMAINE21985
AuroraMAINE22018
Moose RiverMAINE21989
Forest StaMAINE22000
BoundaryMAINE22011
JeffersonMAINE21996
TopsfieldMAINE21992
Lake MoxieMAINE22009
FranconiaNEW-HAMPSHIRE22003
Dixville Notch 2NEW-HAMPSHIRE22024
KasoagNEW-YORK21993
HighmarketNEW-YORK22019

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