Rodents often get under San Diego homes through torn crawl-space covers, open vents, gaps under doors, loose flashing

https://telegra.ph/Why-San-Diegos-Climate-Makes-Roof-Rat-Proofing-a-Year-Round-Job-10-08-2

Rodents often get under San Diego homes through torn crawl-space covers, open vents, gaps under doors, loose flashing, and openings where utility or A/C lines enter exterior walls.