jammer wrote but the call is VERY low, long as usual,
but VERY low.

The temperature dropped as I recall.
(It did here too!)
Amphibians are ectothermic critters.
What we used to call cold blooded. They need
an external source of heat, the sun warming them and their surroundings to
function. The lower the temperature the slower the toad, frog, turtle or snake.

k30a