Same here, but while in Jamaica. They even look like the ones you heard and found.
We knew the sound must be tiny frogges, and asked our friend and driver Bamis about them. He explained that they’re little tiny beige thingies, and mom would never find one, no matter how hard she’d try.
That very night, mom saw and caught one! She picked some nice greenery, and carefully placed it and the tiny frogge in a great big brandy snifter from our suite’s kitchen. She found a way to safely cover the snifter’s mouth to keep in the frogge, but allowed air to circulate. We only kept the frogge until early the next morning, so we could show Bamis when he came to pick us up. He was suitably astonished and quite proud of her 
