Douglas Squirrels in the Roof: Trapping, Exclusion, and Legal Realities in Washington

A rural Washington homeowner faced persistent Douglas squirrels chewing through eave vents and ridge caps. Hardware cloth was being tested daily. The expert emphasized: never seal entry holes until all animals are out—trapping inside causes damage, odor, and suffering.

Key steps:

1. Check state laws—some prohibit translocation; euthanasia may be required. Washington has specific regulations.
2. Use cage traps (min. 5×5×24 in) baited with peanut butter/oats, placed at entry points. Use multiple traps to avoid trap-shyness.
3. Timing matters: spring and mid-summer are peak birthing seasons. If young are present, wait until they're mobile (seen at entrance) before trapping.
4. Confirm evacuation: stuff newspaper in the hole; if undisturbed for 5 days, seal permanently with hardware cloth/metal flashing.
5. Ultrasonics and repellents don't work—squirrels tolerate odor for shelter.

Resources: ICWDM squirrel guide, newspaper plug test. Consider a licensed wildlife control operator for complex jobs.