I'm working on a house that has vertical wood siding, stained, and has loads of holes from birds pecking at it. I believe its cedar and the birds must be going after bugs. Any suggestions on what to use to fill these that will stain to match the rest of the house. I have used stainable wood filler in the past but the end result never looks good, it always stands out from the rest of the area around it. Is there any filler that is better than others? Also, what can be used to stop the birds from doing this? The home owner has used shinny spinners but they don't seem to do much to help. Thanks.