Here in the midwest one sure sign that winter "has left the building" is when the neo-tropical migrants arrive in the forests to gorge themselves on the multitude of insects, and to raise a family. One of my favorite bird-songs is this "zipper" sounding call of the northern parula. Perhaps you have heard this very unique call while out in the woods. I recorded this with my zoom h4n recorder, using its internal stereo microphones. This sound was recorded around 7am on april 29th 2013.
Author: Kvgarlic