Can mean “the alternation of two musical tones a diatonic 2nd aside” or “a sound resembling a musical trill.” The flute-like trill in the Wooden thrush is Probably the most gorgeous track of any North American bird. The descending trill of its relative the veery isn’t way too shabby, possibly. https://socialmediastore.net/story18815426/top-guidelines-of-birdwithmostwords-com