Skunks at the Preserve Fence, Rats on the Channel: Pest Control for North Park

Named for a college, shaped by a sanitarium

Swedish settlers arrived here in the late 1800s, when the land was still part of Jefferson Township. Chicago annexed the township in 1889, and in 1894 North Park College put up its Old Main building along Foster Avenue west of Kedzie. The college became North Park University, and the neighborhood took its name. Over the next century the area became a center of Orthodox Jewish life and later one of the most mixed communities on the North Side, with large Asian and Latino populations today.

The other defining institution came after a 1909 citywide vote to fund a public tuberculosis hospital. The Municipal Tuberculosis Sanitarium opened in 1915 on the land bounded by Pulaski, Peterson, Central Park and Bryn Mawr, and it was then the largest in the country. It closed in 1974. Its grounds became North Park Village: housing, Peterson Park and a 46-acre nature preserve of woods, wetland and prairie at 5801 North Pulaski. Northeastern Illinois University opened its campus in 1961, and two large cemeteries and LaBagh Woods fill much of what remains.

Add the North Shore Channel along the east edge and the North Branch along the south, and a large share of North Park's 2.07 square miles is open land. Bungalow and Georgian blocks surround that land on almost every side. That is the single most important fact about pest control here: the wildlife is permanent, and the houses that border it need permanent defenses.

Striped skunks: the North Park signature call

Skunks turn more North Park homeowners into callers than any other animal. The preserve, the cemetery grounds and LaBagh Woods offer quiet denning cover and plenty of insects, and the blocks next to them offer lawns full of grubs, hollow spaces under concrete stoops and decks or sheds with open skirting. Skunks forage at night, rarely climb, and prefer to dig. A den under a front stoop on Bryn Mawr or a back porch near Pulaski can go unnoticed until the smell drifts into the basement.

February and March are mating season, when males travel widely and spray more often near foundations. Females give birth in May and June, and the young emerge to follow their mother in early summer. That cycle determines when a specialist can act. A one-way door installed while kits are too young to follow leaves them sealed in, so a good provider confirms whether young are present before closing anything.

Exclusion is the standard and lasting fix. Once the den is confirmed, the specialist fits a one-way door so the animal can leave but not return, waits until activity stops, then trenches galvanized hardware cloth about a foot deep, bent outward in an L, around the stoop, deck or shed. Grub control in the lawn removes a reason to visit at all. Live-trapping and relocation are regulated in Illinois, and a trapped skunk in a homeowner's hands is a reliable way to get sprayed.

• Fresh soil pushed out from under a stoop, deck or shed
• Small cone-shaped holes scattered across the lawn overnight
• A musky odor near the foundation, strongest in late winter
• Tracks with five toes and visible claw marks in soft soil or snow

Raccoons and opossums share the same edges

Raccoons work the same preserve and cemetery edges but go up instead of down. They climb downspouts and parkway trees to reach roofs, tear open plastic vents and soft soffits, and den in uncapped chimneys from late winter into spring. On lawns they roll back sod in strips looking for grubs, which looks very different from a skunk's small holes. Virginia opossums slip under decks and into garages left open overnight, and once they find a dry corner they may stay for weeks. Coyotes pass through the preserve and along the river and channel; they rarely need removal, but small pets should not be left out after dark on blocks next to open land.

The repairs overlap with skunk work. Stainless chimney caps, metal roof vents, sealed soffit corners and tight garage doors stop raccoons. Buried mesh around decks and stoops stops both opossums and skunks. Homes facing the preserve on Pulaski, Peterson and Bryn Mawr, and those backing onto cemetery fences, get the most benefit from doing the whole list at once rather than one opening at a time.

Norway rats on the channel banks and riverfront

The North Shore Channel was dug in the early 1900s to carry lake water south to the river. Its banks are long, sloped and wooded, and the North Branch along the south edge has similar banks. Norway rats burrow into those slopes, travel along them out of sight, and forage into the nearest alleys and garages at night. Blocks close to the water in Hollywood Park and around Kedzie and Kimball see this most, along with yards near storm outfalls, which rats and raccoons use as travel routes.

Control follows the rules that apply wherever water meets housing. Bait goes in locked, anchored stations along fence lines and garage walls. Active burrows are treated and collapsed. Garage slabs are sealed, overhead doors get heavy rubber sweeps, and cart lids stay shut. Because the source is the bank, one treatment rarely ends the problem; expect monitoring through the warm months. A 311 request can bring city crews to bait public alleys and parkways, which works best when several neighbors file at the same time.

Cockroaches and bed bugs in campus-area flats

Around Northeastern Illinois University and North Park University, many two-flats and small courtyard buildings house students and frequent movers. Turnover is a cockroach risk. German cockroaches arrive in boxes, used furniture and secondhand appliances, and in buildings with stacked kitchens they spread through plumbing chases to the units above and below within weeks. Bed bugs follow the same moving patterns, especially in late August and January, though they need their own inspection and treatment.

For owners, routine beats reaction. Inspect units between tenants, treat every kitchen on an affected stack with gel baits and insect growth regulators, seal pipe penetrations at each floor and return after two or three weeks to catch nymphs from egg cases the first round missed. Tenants help by reporting activity early and skipping foggers, which push roaches deeper into walls. Chicago's landlord and tenant rules generally put extermination in a multi-unit building on the owner, so renters should report sightings to the owner in writing and keep a copy.

Bungalow, Georgian, riverside house or two-flat

North Park's housing is less varied than its land use, but each type still has predictable weak spots. Brick bungalows and Georgians from the 1920s through the 1950s dominate the blocks around Pulaski and Kimball. They sit on raised basements with window wells near grade, and their detached garages face long alleys. House mice come in at the sill plate and around utility lines each fall, carpenter ants move into damp porch framing, and squirrels chew into soffits where parkway trees overhang the roof.

Riverside houses in Hollywood Park often have lower basements and damp foundation walls, which suit millipedes, house centipedes, silverfish and oriental cockroaches. A dehumidifier, working gutters, extended downspouts and sealed cracks do more there than any spray. Two-flats near the campuses need building-wide plans for insects. Newer townhomes are tighter, but attached garages, roof decks and window wells still need sealing on blocks close to the channel and preserve.

Blocks that back onto cemetery fences deserve a special mention. Bohemian National Cemetery and the other large burial grounds here are quiet at night, heavily treed and rarely disturbed, which suits raccoons, skunks, opossums and squirrels. Houses whose garages or yards share that fence line tend to see wildlife at the ground line first: dens under sheds and porches, digging along the fence, and squirrels jumping from cemetery trees onto garage roofs. Treat the garage as part of the house there, with a sealed slab, a tight overhead door and screened roof vents.

The North Park calendar

Wildlife sets the rhythm outdoors, while indoor pests follow the furnace and, near the two campuses, the academic year. Move-in weeks bring a wave of boxes and used furniture into apartment buildings, and each one can carry cockroaches or bed bugs. A wet spring or mild winter can shift the outdoor schedule by several weeks. Use it to plan roof and stoop work in the quiet weeks before each peak.

• February and March: skunk and raccoon mating, more night travel and odor near foundations
• April and May: rats expand burrows on channel and river banks, carpenter ants swarm, moles ridge lawns
• May and June: skunk and raccoon young in dens, so exclusion is timed to let families leave together
• Late August and September: grub-season lawn digging and student move-in introductions
• October and November: house mice and deer mice move indoors, especially near the preserve and LaBagh Woods
• December to February: mice and roaches indoors, rats concentrated near garages and warm foundations

Prevention for preserve-edge homes and rental buildings

Two very different kinds of property share this community area, so the list covers both. Houses near open land need physical barriers against animals that will always be close by. Rental buildings near campus need routines that stop insects from spreading between units at turnover. Start with the items that match your building. Owner-occupied two-flats near the preserve often need both halves of the list.

• Skirt decks, stoops and sheds with hardware cloth buried about 12 inches and bent outward
• Cap chimneys and replace plastic roof vents with metal
• Treat lawn grubs to reduce skunk and raccoon digging
• Keep garages closed at night and pet food and birdseed in metal cans
• Seal garage slab edges and fence-line gaps on blocks near the channel and river
• Inspect rental units between tenants and treat every kitchen on an affected stack
• Check used furniture and appliances in the gangway before carrying them inside

What a visit looks like here

For wildlife, the specialist walks the house and yard looking for dens, entry points and signs of young, explains the plan, installs a one-way door and returns to seal the opening and bury the barrier once the animal has left. Illinois regulates nuisance wildlife removal, so confirm the provider holds the right state permit. An animal trapped in a garage or living space usually gets priority, often the same day. For rats along the channel, expect locked stations and several checks over the warm season rather than a single visit.

For insects and rodents in multi-unit buildings, coordinate with the owner or association before booking. The technician will need the basement, rear stairs and every kitchen on the affected stack. Tenants should empty under-sink cabinets and pull appliances a few inches from the wall. Homeowners whose back fence faces the preserve, a cemetery or the channel should ask for photos of every entry point and repair, and keep them with the house records.