Can suggest “the alternation of two musical tones a diatonic second aside” or “a sound resembling a musical trill.” The flute-like trill of the wood thrush is perhaps the most stunning track of any North American chicken. The descending trill of its relative the veery isn’t far too shabby, either. https://social-galaxy.com/story3683628/not-known-factual-statements-about-birdwithmostwords-com