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

Common Loon In Atlantic Northern Forest

Common Loon in Atlantic Northern Forest has surged: up 211% on the route-weighted index since 1968.

+211%Since 1968
107Routes In Region
58Years

Notable Signals

long arc increasecomputed index

Common Loon has surged in Atlantic Northern Forest: up 211% on the route-weighted index since 1968.

Forecast

If the recent trend holds, Common Loon in Atlantic Northern Forest is projected to rise about 25% by 2029 — from 0.60 in 2024 to a central estimate of 0.74 (95% range 0.51–0.98). A 5-year backtest shows a typical error of ±25.5%, with 100% of held-out values landing inside the 95% band.

+25%Change by 2029
0.74Projected 2029 index
0.510.9895% range
±25.5%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
20250.710.480.94
20260.720.490.95
20270.730.490.96
20280.740.500.97
20290.740.510.98

Routes In Atlantic Northern Forest

Routes recording Common Loon in Atlantic Northern Forest.
Lake MoxieMAINE72022
Seboomook LkMAINE62014
St DavidMAINE62004
NewcastleMAINE42008
EastbrookMAINE42024
Carrying PlMAINE42024
SabattisNEW-YORK41983
Wilson MillsMAINE32024
GreenwoodMAINE32024
NorthfieldMAINE31981
Weeks BrookMAINE32016
SpeculatorNEW-YORK32017
InletNEW-YORK32017
WanakenaNEW-YORK32024
GabrielsNEW-YORK32024
ReedsMAINE22014
HarmonyMAINE22024
BrooksMAINE22017
CastineMAINE22005
CooperMAINE22019
GreenvilleMAINE22022
Grnd Lk StrmMAINE22000
Clayton LakeMAINE22001
LudlowMAINE21996
Horse MtnMAINE22011

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