Yes. A sudden, loud air horn is one of the noise deterrents wildlife agencies suggest for a bobcat that keeps showing up in your yard. The catch is that noise only buys you time, so here's how to use a battery train horn to protect chickens, cats, and small dogs without teaching the bobcat to ignore it.
The Short Answer: Agencies Recommend Loud Noise
Bobcats are shy, solitary cats. City and state wildlife offices that deal with them in suburbs keep giving the same advice: make the animal uncomfortable and it moves on.
- Los Angeles Animal Services says bobcats are "generally easy to persuade to leave." For a repeat visitor it suggests noise and motion deterrents, and it names the air horn first, ahead of motion-activated sprinklers, banging pans, and a radio left on a talk station.
- The California Department of Fish and Wildlife (CDFW) says scare devices such as motion lights, motion detectors that make loud sounds, or radios "may also deter bobcats," but only until the animal learns the device poses "no true threat."
- The City of West Des Moines, Iowa lists motion-activated noise or sprinkler deterrents in its bobcat tips. It also says to keep pets supervised and indoors at night.
So a horn works, but CDFW's warning matters as much as the recommendation. Everything below is about getting the first part without running into the second.
What a Bobcat Is Actually After on Your Property
Bobcats mostly eat rabbits, squirrels, mice, and voles. People run into trouble when a hungry bobcat finds an easier meal. The Rhode Island Department of Environmental Management puts adult females at 13-20 lb and males at 25-30 lb, with some over 30. Georgia DNR describes them as about twice the size of a house cat. That's big enough to kill most backyard birds and pets.
| At risk | What agencies say | Main protection |
|---|---|---|
| Chickens and ducks | Rhode Island DEM says bobcats "occasionally take" chickens and ducks that aren't properly protected. LA Animal Services says they have entered coops and killed every bird inside while eating only a few. | A locked coop with a solid top, closed before dark |
| Outdoor cats | Connecticut DEEP lists attacks on domestic cats among the infrequent conflicts it sees. Georgia DNR notes bobcats prey on feral cats. | Bring cats in from dusk to dawn |
| Small dogs | CDFW's "Living with Wildlife" sheet says small dogs left unsecured at night can become prey. Kansas wildlife staff have said the risk is to cat-sized dogs. | Supervise small dogs outside, especially at dawn and dusk |
| Rabbits, small goats, lambs | CDFW lists poultry, piglets, small goats, and lambs as possible prey when left unsecured at night. | Secure pens, especially during birthing season |
One reality check from LA Animal Services: coyotes are "by far the most likely culprit" in urban pet attacks, and a missing cat is usually not a bobcat's doing. If you haven't actually seen the cat, check for tracks. Bobcat prints are round and show no claw marks, while coyote prints do.
How to Haze a Bobcat With a Battery Train Horn
Hazing means making the animal's visit unpleasant so it decides your yard isn't worth it. The Humane World for Animals guide on bobcats says hazing works best if you keep it up until the bobcat actually leaves the property. A half-hearted toot that lets it sit and watch does more harm than good.
- Get your pets and people inside first. Don't haze a bobcat while your small dog is between you and it. A startled cat may run in any direction.
- Keep your distance and leave it an exit. LA Animal Services notes that bobcats will fight back when they're cornered, sick, or injured. Stand where the bobcat has a clear line away from you, like toward the brush line or the back fence.
- Use short, sharp blasts, not one long hold. Hit the horn, pause, hit it again. Add movement too: step toward it, wave your arms, and keep at it until the bobcat is off your property, not just behind the shed.
- Follow up the next time it shows up. One scare rarely ends a habit. CDFW says once a bobcat kills livestock or a pet, it is likely to come back and do it again.
- Back off in kitten season. CDFW says litters of 2 to 4 kittens are typically born between April and July, often in dens under brush, logs, or structures. If a female is denning under your deck, horn blasts won't make her leave her kittens. Call your state wildlife agency instead.
Before you aim a horn anywhere near your own animals, read our guide on safe distances for pets and train horns. The same loudness that rattles a bobcat at 50 yards can hurt your dog's ears at arm's length.
A wireless remote is the most useful feature for this job. You can leave the horn on a fence post by the coop and fire it from the back door or a window, so you never have to walk into the dark toward the animal. Every horn in our wireless remote lineup works this way.
If you already have cordless tools, the Extreme Series Train Horn for Milwaukee® 18v Battery runs on any Milwaukee® M18™ pack, puts out 150 dB, and comes with a wireless remote rated to 160 feet. A long-range remote upgrade reaches up to 2,000 feet. You don't need 150 dB to bother a bobcat in your yard, though. A dual-trumpet model is plenty for a typical lot. Our train horn buyer's guide compares every tier and battery platform.
Why the Horn Alone Won't Save Your Chickens
CDFW's habituation warning is the key point. Any noise device that goes off and never leads to anything bad eventually becomes background noise to a smart predator. A horn buys time. A good coop solves the problem for good. Here's what the agencies recommend:
- Cover the top. CDFW says bobcats can jump fences 6 feet or higher and climb wooden posts. An open-top run is not protected. For daytime runs, CDFW recommends 1-inch chicken wire over a sturdy wood frame, with the top seams overlapped and wired shut.
- Lock up before dark. CDFW calls for well-fitted doors on poultry houses. Rhode Island DEM says to bring animals in before dark and check enclosures for holes often.
- Dig in the bottom edge. Rhode Island DEM recommends burying enclosure fencing at least 1 foot down on all sides.
- Add hot wire if it keeps climbing. CDFW's design uses two electrified strands at 12 and 18 inches, plus one or two near the top of the fence.
- Remove the bait. Feed pets indoors and clean up under bird feeders. CDFW points out that predators follow prey, and seed piles draw the rodents bobcats hunt.
Once the coop is secure, the horn becomes a backup instead of your only defense. To make it hard for the bobcat to get used to, set it up to fire only when something actually crosses the coop line, instead of on a timer. Our motion-sensor train horn setup guide covers the wiring and how to change trigger patterns so the noise stays unpredictable.
Bobcat, Coyote, or Mountain Lion? The Horn Plan Changes
Use the right playbook for the animal in front of you. LA Animal Services notes that bobcats are often mistaken for mountain lions or large house cats. CDFW's sheet says a bobcat is two or three times the size of a house cat but only one-quarter to less than one-half the size of a mountain lion, with a 4- to 6-inch bobbed tail.
- Bobcat: Usually leaves once it's hazed. Most of the work is fixing the coop so it doesn't come back.
- Coyote: More likely to go after pets and to come back bolder. See how train horns work on coyotes and deer.
- Mountain lion: Don't haze it like a bobcat. Stand your ground, make yourself big, and never run. Our mountain lion and moose guide covers the different rules.
Stay Legal and Neighborly
Noise hazing that doesn't touch the animal is what agencies tell homeowners to do. Going further is where people get into trouble. In California, CDFW says bobcat hunting and trapping have been banned since January 2020, and trapping and relocating a problem bobcat is not a legal option. Rhode Island DEM lists bobcats as a protected furbearer with no open season. Check your own state's rules before you do anything beyond making noise.
Your neighbors are the other half of this. Bobcats are most active at dawn and dusk, which is exactly when people are sleeping or eating dinner. Keep blasts short, use them only when the animal is actually there, and tell the people next door what you're doing. A neighbor who knows why you're using a horn is less likely to call in a noise complaint.
FAQ
Will an air horn make a bobcat attack me?
It's very unlikely. LA Animal Services says bobcats usually flee when seen or approached, and Connecticut DEEP calls attacks on people extremely rare. The risk comes from cornering one or getting close to a sick or injured animal, so haze from a distance and leave it a way out.
Can I leave a horn on a timer to keep bobcats away?
Not for long. CDFW says scare devices work only until the bobcat figures out they're harmless. A motion trigger or a remote you fire only when the bobcat is actually there holds up much longer than a fixed schedule.
Is a bobcat a danger to my 25-pound dog?
Much less than to a cat or a toy breed. Agencies describe the risk as mainly to small, cat-sized dogs left out unsupervised at night. A medium dog is more likely to get hurt chasing a bobcat into a corner, so keep it leashed if you know one is around.
Does the same approach work on skunks and raccoons?
Partly. They're smaller and more likely to be denning under a structure, so the eviction process is different. See our guide on skunks and opossums.