Halfway down the steep slope from the paved overlook above the St. Louis River at the picnic area is a busily singing pair of Canada warblers. I was surprised to make this ID by following the song along the hillside; the Canada warbler is a species very familiar to me from the 1970s and 80s at the other end of Lake Superior (in Ontario,) where I knew the song with a significantly different rhythm and phrasing. Though unable to make the time commitment to discern if these birds are nesting, I'm guessing that they are due to the persistence of their singing right along that tier of semi-open forest which includes firs, maples and birches.
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