i heard mine croak at two different times so far...once while i was half asleep laying in bed....so i thought it might not of been a croak and just me wanting to hear one and dreampt of it lol but the next night while watching tv...i heard it again and thought it was my stomach so i stopped to listen and then it croaked again so i knew it was from my pixie but its only like almost 3 inch believe it or not