Ospreys arrive in April, and eagles begin to nest by the end of March. In the fields and clearings, male woodcocks can be seen and heard performing their courtship flights at dawn and dusk. Male ruffed and spruce grouse start drumming in the woods. By mid July, shorebirds begin to arrive from northern nesting grounds on their long migration south. In August, the terns and alcids begin to migrate.
Male eiders start to congregate offshore in large floating flocks, or rafts, for the fall molt.
Deer give birth to their fawns in June. Wildflowers such as orchids, azaleas and iris bloom throughout the spring and summer. The shorebird migration peaks in September and the raptor, waterfowl and songbird migrations begin. By late October, large rafts of oldsquaws and buffleheads can be seen offshore. Flocks of black ducks collect on the ponds and bays.