sol-si

Updated: June 7, 2025

The winter birds report all present but there are a number of new voices, especially the warble of the robin, the tremulous, confiding "sol-si, sol-si" of the bluebird and the clear call of the phoebe. The robins are thick down in the birch swamps, on the islands among the last year's knot-weed.

Frederick John Lazell - Some Winter Days in Iowa