Trash, pet food and fallen fruit: meals that feed more than bears
Bears in Sierra Madre go mainly after trash. Over roughly six weeks in the summer of 2023, the city logged 122 bear calls, and its wildlife rules now call for bear-resistant containers from Athens Services kept latched on non-collection days, food scraps in the green bin and fallen fruit picked up right away.
The city's wildlife page does not discuss rodents. Even so, an unlatched bin, kibble left on the porch and fruit rotting beneath a tree are the kind of easy meals roof rats and mice are likely to find, and roof rats often travel along fences and branches to reach them. Following the ordinance is probably one of the simplest ways to lower rodent pressure around a home, and during our inspection we point out the food sources in the yard along with the gaps in the house.
Sources: [17][16]
Foothill lots, brush clearance and the predators next door
Since May 27, 2025, Sierra Madre's foothill and canyon areas have been mapped as Very High Fire Hazard Severity Zones, where at least 100 feet of defensible space is required. Woodpiles against the house, shrubs pressed into the siding and limbs resting on the roof are fire concerns, and they also give rodents cover and a route to the roofline. Any trimming or clearing we suggest stays within the fire department's defensible-space rules.
These hillside lots also border wildlife habitat. The city's guidance addresses coyotes, police have guided bears back toward the wild land north of town, and a bobcat found injured in Sierra Madre in early 2025 was rehabilitated and released back in the city that June. Because a poisoned rat can be eaten by a bobcat, coyote, owl or hawk, we rely on exclusion and snap traps on these properties and avoid placing rodenticide where wildlife could reach poisoned rodents.
Sources: [15][16][18][19]
Older framing, crawl spaces and a careful cleanup
With a median build year of 1959 and about 60% of homes detached, much of Sierra Madre's housing has crawl spaces, attic louvers and wood trim that have had decades to loosen. A mouse can squeeze through a gap of roughly a quarter inch and a young rat through about half an inch. We close openings with galvanized mesh, hardware cloth and sheet metal, and we photograph each repair so you can see what was done.
Once captures stop, we remove droppings and nesting material, sanitize the affected areas and set exterior monitoring. Cleanup matters for fleas, too: LA County recorded a record 220 flea-borne typhus cases in 2025, spread by fleas that ride on rats, opossums and stray cats. That is a county-wide figure, not a Sierra Madre one, but the county's advice to seal crawl spaces and keep pet food indoors applies here.
Sources: [12][11]
