As I posted here a week ago, by analyzing the eBird database for Oregon, I've created maps that show places in each county where birders have submitted complete lists to eBird as of July 2019. Thus, by default, the larger the "blank spaces" between points, the greater the mystery of what birds occur there. By stopping to bird in some of these areas (provided access and safety allow) and eBirding our observations when we do, we contribute more to improving knowledge of Oregon bird distributions and habitat preferences than by birding only in well-covered "hotspots." I find it personally satisfying to cover unbirded "blank spaces" (streets, roads, trails) that are within a dozen or so miles of where I live, and farther ones when I have more time. I find these by zooming in to a map (which optionally can be seen on your smartphone), driving there, finding a safe place to park, and walking for several minutes as I eBird what I see and hear.
Since posting this a week ago I adjusted the "permissions" on the maps so anyone can now see them by clicking on the links below -- you don't have to contact me personally or have a Google account. So far, I've prepared these mostly for counties in western Oregon but will post links for the other counties once I finish those maps. For many counties I'm also preparing maps showing parts of the county with no reports historically during the current month, and will post the links as I finish those maps also.