Sign of termites or just wood movement?
We have lived in our 1-story house with hardwood floors for three years, but this is our first time experiencing this.
For the past few days or so, we have been hearing seemingly random 'pop'/'crack' sounds of varying intensities throughout a couple of the main areas in our house. To be more specific, the sounds are like those made if a grain of rice (or perhaps a metal tack)is dropped onto hard wood floor, without the 2nd bounce of course. In addition, the sounds never occur simultaneously; rather, from where and when the sounds occur, it almost seems as if a 'hard' insect is moving very quickly around and crashing into the floor and/or walls.
We have tried to track the sounds visually to see if it is indeed a bug flying around but have not seen anything (at least not in action, more on that later).
One guess is that it might just be the house expanding/contracting with the temperature changing throughout the day, however, I don't recall anything of this nature and frequency in our 3 years in the house until now.
What I am beginning to suspect however, is that we have termites. When we first bought the house we got it fumigated, and the termite warranty recently expired a few months ago, so of course this would be Murphy's Law rearing his head at just the perfect time. I have also stumbled upon 2 bugs which appear to match the description of what a winged termite looks like, according to this site:
I did not suspect termites at the time though, so I do not currently have a picture to share.
I have not however found any wood/saw dust piles, or shed trrmite ant wings yet, which I understand are other sure signs of termites.
Anyone have any idea -- termites, or just wood expanding+contracting?
And if it is termites, what in the world is causing the sounds -- are they from the winged termites bouncing off the floor/walls, or the termites eating our house from behind the walls and under the floor??