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

Common Tern In Lower Great Lakes / St. Lawrence Plain

All regionsLower Great Lakes / St. Lawrence PlainWetland birds

Common Tern in Lower Great Lakes / St. Lawrence Plain has fallen sharply: down 64% on the route-weighted index since 1975.

-64%Since 1975
6Routes In Region
12Years

Notable Signals

long arc declinecomputed index

Common Tern has fallen sharply in Lower Great Lakes / St. Lawrence Plain: down 64% on the route-weighted index since 1975.

Routes In Lower Great Lakes / St. Lawrence Plain

Routes recording Common Tern in Lower Great Lakes / St. Lawrence Plain.
MiddlefieldOHIO151975
OgdensburgNEW-YORK22024
MacdougallNEW-YORK11997
Cicero CtrNEW-YORK12023
N VictoryNEW-YORK11967
Grand IsleVERMONT12012

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