Hi Petra. I don't know if you will make it down here to read this or not but I wanted to post an update.

The increase in popping and ping ponging back and forth only lasted one night and through part of the next day. In February, it went on for several days and was a day and night thing that caught my attention. Things seem to have returned to normal, so I thought I would let you know. Animals seem to be acting normal as well which is always reassuring :-)