The trilling call of the Midland Chorus Frog is often likened to the sound made when you run your thumb over the teeth of a comb. This video from April 2019 gives you a chance to enjoy the call:
Male midland chorus frogs put a lot of effort into their song. The sound is produced when they force air out of their lungs and over their vocal chords.
Here a male rests between calls with his vocal sac deflated:
Now his vocal sac reaches peak inflation as he calls:
Two male chorus frogs face off as they battle for the attention of females:
Midland Chorus frogs typically have distinct stripes down their back:
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