Can suggest “the alternation of two musical tones a diatonic next aside” or “a seem resembling a musical trill.” The flute-like trill on the wood thrush is perhaps the most wonderful tune of any North American chook. The descending trill of its relative the veery isn’t also shabby, possibly. You https://bookmarkfavors.com/story3784840/how-birdwithmostwords-com-can-save-you-time-stress-and-money