1972
In the fall, off the coast of New Hampshire, about 1600 ducks deaths resulted from the birds feeding on toxic shellfish.

1972
Over 600 birds, including common eiders, black ducks, and gulls were found, the result of a marine biotoxin from an algal bloom off the Massachusetts coast.

1973
73 common terns, 2 arctic terns, 1 roseate tern, 2 laughing gulls, 38 herring gulls were found, accounting for 1.3% of the seabird breeding colony. Most were females in pre-laying condition. The toxins that likely caused the event were found in sand lance.

1978
At least 70 common terns, mainly pre-breeding females died of paralytic shellfish poisoning in Massachusetts.

1993
An unusual number of seabird deaths reported on successive days starting in Florida, north to New Jersey - a toxic or pathologic agent moving northward?

1999
Dozens of alcids died on New England beaches and as far west as inland New York state, the result of an unknown pathogen.

2000
At least 500 gulls were found dead in St. John's, Newfoundland, poisoned with avian botulism toxin, probably from eating human food at garbage dumps.

2001
Brant die-off in New Jersey Wildlife Refuge - so far unsolved even after USGS study.

2002
Dozens of northern gannets died from South Carolina to New England the result of a possible pan-Atlantic event with similar mortality occurring in Europe.

2002
An unusually high number of loons emaciated and dying on Long Island.