23–29 May 1859

The warblers at this season make much of the beauty and interest of the woods. They are so eloquent in form and coat, and many of them here but for a short time ; the Blackburn- ian warbler rarely seen by Henry Thoreau ; the trees still allowing you to see far. Their small leaflets do not vie, — with the spaces of the sky, — but let in the vision high — and (yesterday) Concord was all Sicily.