Great shearwaters nest on small islands in the southern Atlantic Ocean when it is summer down there.

Who flipped the switch from migration to the breeding season?

Birds that are migrating northward are still pouring through, especially warblers, flycatchers and shorebirds.

About 321,500 birds migrated over Martha’s Vineyard on the night of May 21-22.

How many species of birds are on the Island?

May has arrived and brought the northward migration of warblers and other songbirds.