Figure 2. Annual cycle of Saltmarsh Sparrow breeding, migration, and molt.
Thick lines show peak activity, thin lines off-peak activity. The lines for breeding and migration reflect average timing across range, but local peak and off-peak timing varies between northern and southern parts breeding range. Earliest migrants may be individual outliers. Molt initiation can vary depending on end of most breeding activity (primary sources: Hill 1965, Winder 2012; JSG, New York; WP, South Carolina; P. Pyle, molt, based on specimens. In New York, we found no evidence of body molt in early arrivals of local individuals on breeding grounds, latest April-early May; JSG banding notes). See text on migration chronology.