Gray/grey treefrog (hyla versicolor) calling: video - youtube, Gray treefrog calling. filmed and edited by ryan m. bolton, msc © ryan m. bolton all imagery available for purchase. please contact at www. Answers - the most trusted place for answering life's, Congratulations to the 2015 wammy award winners (for questions and answers posted in 2014)! the wammy awards are a fun way to recognize questions, answers.