The Eastern Bluebird’s most common call is a soft, low-pitched tu-a-wee with a querulous tone. The call lasts a little less than a second, with males’ calls typically slightly longer than females’. Bluebirds give this song in all seasons as a way of keeping in touch with each other or to signal nestlings that adults are bringing food. https://www.allaboutbirds.org/guide/Eastern_Bluebird/sounds
IN MY VIEWFINDER 
You must be logged in to post a comment.