BirdAnalyst
Species · BCR 13 · BBS 2025 Release · 1966–2024

Common Raven In Lower Great Lakes / St. Lawrence Plain

All regionsLower Great Lakes / St. Lawrence PlainGeneralists

Common Raven in Lower Great Lakes / St. Lawrence Plain has surged: up 22× on the route-weighted index since 1982.

22×Since 1982
51Routes In Region
39Years

Notable Signals

long arc increasecomputed index

Common Raven has surged in Lower Great Lakes / St. Lawrence Plain: up 22× on the route-weighted index since 1982.

Forecast

If the recent trend holds, Common Raven in Lower Great Lakes / St. Lawrence Plain is projected to fall about 32% by 2029 — from 1.6 in 2024 to a central estimate of 1.1 (95% range 0.57–1.6). A 5-year backtest shows a typical error of ±40.1%, with 40% of held-out values landing inside the 95% band.

-32%Change by 2029
1.1Projected 2029 index
0.57–1.695% range
±40.1%Backtest error
19722029
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
20251.000.461.5
20261.00.491.6
20271.10.521.6
20281.10.541.6
20291.10.571.6

Routes In Lower Great Lakes / St. Lawrence Plain

Routes recording Common Raven in Lower Great Lakes / St. Lawrence Plain.
North EastonNEW-YORK92024
PhiladelphiaNEW-YORK92024
ParishvilleNEW-YORK82024
Oriskany FlsNEW-YORK62024
E YoungstownNEW-YORK62022
ArgyleNEW-YORK62024
Ferris CrnrsPENNSYLVANIA62024
BranchportNEW-YORK52024
Cicero CtrNEW-YORK52014
OgdensburgNEW-YORK52024
EspyvillePENNSYLVANIA51989
PulaskiNEW-YORK42023
SalemNEW-YORK32024
EllenburgNEW-YORK31989
ColchesterVERMONT32024
RhinebeckNEW-YORK22024
W ShokanNEW-YORK22019
CatskillsNEW-YORK22010
GhentNEW-YORK22024
TrumansburgNEW-YORK22024
HamburgNEW-YORK22016
WillsboroNEW-YORK22024
BalmatNEW-YORK22007
TeeplevillePENNSYLVANIA22024
North PownalVERMONT22024

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