The Prothonotary Warbler arrives irregularly form the middle to last of April (April 7, earliest) and leaves during the first half of September.

     It nests in holes and cavities and prefers to be near water.  It breeds along the Blue and Swope Park district and is common in the Missouri bottom timber near swampy and damp places.  Deserted woodpecker holes in standing dead trees or stumps are favorite nesting sites.