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The Blackpoll is among the most numerous warblers in far northern forests in summer, and perhaps the most impressive migrant of all our small birds. Every fall, most Blackpoll Warblers make an over-water migration from our northeastern coast to northern South America; some may pause in Bermuda or the Antilles, but others apparently fly nonstop for more than 72 hours. In spring they are more leisurely, traveling via the West Indies and Florida, pausing to sing in our shade trees on their way north.