Prothonotary Warbler

ProthonotaryWarbler4 (173K)
Henryton Road PVSP June 1, 2013 Photo by Matt Rogosky
Sound recording by Allen Lewis HERE

But the songs may appear quite different in sonograms (on the same day by Allen Lewis):
ProthonotaryWarbler_song-1 (41K)
ProthonotaryWarbler_song-2 (42K)

Prothonotary Warbler1

Prothonotary Warbler2

ProthonotaryWarbler6

Race Road April 29, 2006 Photos by Ralph Cullison

Lake Kittamaqundi May 28, 2017
Photo by Kurt Schwarz