This year, male Golden-winged Warbler(s) (phenotype) was observed singing a modified version of a Northern Parula song in both eastern TN and western NC. This individual established a territory at Hampton Creek Cove State Natural Area, located in eastern TN on the Roan Mountain Massif where I have studied GWWAs for the last 9 years. I would not have thought to track down the bird to get a visual if it were not for the fact that N. Parulas do not occur at this state natural area during the breeding season and the song was very much Parula like but not an exact Parula song. I was able to capture the bird and place color bands on it. Also, this year, a similar observation was made in western North Carolina by Chris Kelly (NCWRC biologist) who was conducting general surveys for Golden-wings. The observation in NC was made prior to the individual being detected at the state natural area. The NC site where the Parula singing Golden-wing was detected is not monitored throughout the season. We both captured the bird behavior on video and hope to compare audio files. There is a possibility that this could be the same individual. Regardless, this is one of the more recent anomalies I have observed while studying Golden-wings. Nora Schubert Wildlife Biologist Johnson City, TN