ROSEBURG, Ore. -- Decades after federal agencies cordoned off millions of acres of Pacific Northwest forests to protect old-growth trees -- the favored habitat of the northern spotted owl -- the bird is as imperiled as ever. While clear cuts are the historic culprit, biologists, loggers and policymakers are now pointing the finger at the owl's larger cousin, the barred owl, a more aggressive species that migrated west in the late 1950s and has spread south from British Columbia into Washington, Oregon and California. Go to story #1