The raccoon (Procyon lotor) is one of the most adaptable and intelligent wild mammals in North America. With their distinctive black face mask, ringed tail, and remarkably dexterous front paws, raccoons are capable of opening latches, lifting lids, and manipulating objects with a level of manual dexterity unmatched among North American wildlife. In Montana, raccoon populations are concentrated in river corridor habitats and urban/suburban fringes where abundant food, water, and denning sites are available.
Raccoons are opportunistic omnivores — they will eat almost anything and exploit almost any food source that humans provide or leave accessible. Unsecured trash cans, compost bins, pet food, garden produce, birdfeeders, and fish ponds are all reliable raccoon attractants. Once raccoons associate a property with food, they return consistently and become increasingly bold.
The most serious conflict with raccoons occurs when they gain access to attics, chimneys, crawl spaces, and outbuildings as denning sites — particularly pregnant females seeking a safe location to raise their young in spring. A raccoon in an attic causes significantly more damage than a squirrel: they are large, strong, and capable of tearing apart ductwork, compressing insulation, and creating large accumulations of waste in a very short time.
Size
18–28 inches; 8–20 lbs
Color
Gray-brown fur; black face mask; banded tail
Active Season
Year-round; most active April–October
Risk Level
High (rabies vector; roundworm; structural damage; aggressive if cornered)
Habitat
River corridors, urban areas; attics, chimneys, crawl spaces
Denning season
February–April (females seeking nest sites)
SIGNS OF INFESTATION
Signs of Raccoon Activity on Your Property
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Overturned or raided trash cans — Lids removed, contents scattered — often overnight. Raccoons are strong enough to displace bungee-corded lids.
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Heavy thumping in the attic — Raccoons are large animals; their movement in an attic is loud and distinct from mice or squirrels.
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Torn soffit or fascia — Raccoons are strong enough to physically tear open weakened soffits, fascia boards, or roof edge materials to gain attic access.
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Latrines in concentrated areas — Raccoons establish latrine sites — areas where they repeatedly defecate — in attics, on rooftops, and in gardens. These accumulate quickly and are a serious health hazard.
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Pawprints near structures — Hand-like five-toed prints in mud, snow, or soft soil near your home, trash area, or water feature.
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Damaged garden or fish pond — Dug-up garden beds, damaged sweet corn, or missing fish from ornamental ponds are classic raccoon calling cards.
HEALTH RISKS
Raccoons are one of the primary wildlife vectors for rabies in North America — any raccoon displaying unusual behavior (active in daylight, disoriented, aggressive without provocation) should be treated as a potential rabies risk and reported to Montana Fish, Wildlife & Parks immediately. Raccoon roundworm (Baylisascaris procyonis) is a serious and potentially fatal human health risk — the eggs in raccoon feces can survive in soil for years and cause severe neurological disease if accidentally ingested, particularly by children. Raccoon latrines in attics must be cleaned up with extreme care using appropriate PPE and enzyme-based disinfectants. Leptospirosis is also associated with raccoon urine.
PROPERTY DAMAGE
A raccoon in an attic is a significant property damage event. They tear apart ductwork, compress and soil insulation (which must be replaced), create large fecal latrines, and can cause structural damage pulling apart materials. Attic remediation after a raccoon family has resided for a season frequently costs thousands of dollars in insulation replacement, structural repair, and sanitization alone — in addition to the removal and exclusion work. Chimney denning, if allowed to proceed, results in similar contamination.
