By early June in northeast Ohio the Gray Treefrog singing was still going strong on warm and moist nights.
Here is a Gray Treefrog that picked an unstable perch to sing his song. Watch how his singing causes his whole body and the cattail leaf he is perched on to bounce around:
Although there was a bout of American Toad breeding in May, an occasional male toad has attempted to attract a mate. Here is a lonely American Toad singing his song in early June: