Thank you for sending images of the objects you are finding indoors. We’re unable to see anything that indicates the items are, or were, living creatures.
To obtain a first-hand identification, as well as to learn how to manage them, secure some intact samples in a rigid container such as a clear jar with a lid. Take the samples, and a piece of the pine firewood that appears to be the source, to the Klamath County Extension Service Office, 6923 Washburn Way, Klamath Falls, OR 97603. Their webpage is here - https://extension.oregonstate.edu/kbrec.