Funny you should ask, not bugs but what appears to corn stashed in the tree somehow, lol. The madrone I cut up today was extremely dry, like 10% moisture. I’ll chop the bigger ones tomorrow and check the moisture level.
In subreddit r/firewood
In a post titled:
Picked up oak and madrone that's been on the ground since last year, it's weathered yet seasoned. If split and sun baked for few weeks will it be gtg this winter?