Should You Put a Bell On Your Cat's Collar?

Whether to put a bell on your cat's collar is one of those questions that sounds simple but doesn't come with a neat, one-size-fits-all answer. What works beautifully for one cat may not suit another at all, and the right choice really comes down to your home, your cat's personality, and how they move through their day.

At Supakit, we believe that decision should always sit with you. That's why all of our breakaway cat collars come with a detachable bell as standard. You can use it, or leave it off entirely. It's your call.

Below, we'll walk you through the benefits and potential drawbacks of cat collars with bells, so you can feel confident in whatever you decide. One thing worth knowing upfront: as with any collar accessory, a bell should only be introduced once your cat is comfortable and settled in their collar, and even then, it's best done gradually. Our guide to collar training and fitting covers this in detail.

In this article

• Why do cat collars have bells?
• Alternatives to bells for reducing predation
• Are cat collars with bells bad for cats?
• Should cats wear collars with bells?

Why Do Cat Collars Have Bells?

Bell collars have been part of cat life for centuries. But beyond tradition, there are some genuinely practical reasons why so many cat owners choose to keep the bell on.

1. A Cat Bell Helps You Know Where Your Cat Is

Cats are naturally quiet and remarkably good at finding their way into unlikely spots without making a sound. A cat collar with a bell makes it so much easier to locate them around the house, in the garden, or behind furniture you didn't think they could reach.

For cats with disabilities, a bell collar can be especially valuable. Cats who are less mobile may not be able to move out of the way quickly, which puts them at risk of being stepped on or sat on. A bell gives you that gentle heads-up that your cat is close by.

A kitten collar with a bell is just as useful for young cats. Kittens are fearless little explorers with a real talent for squeezing into tight spaces and getting stuck. Hearing that familiar jingle makes it much easier to keep track of them during those early, adventurous months.

2. Bells Can Help Reduce Tension Between Cats

If you share your home with more than one cat, you'll know that the social dynamics can be complex. Cats are territorial by nature, and friction between individuals isn't unusual. Cat bell collars can play a surprisingly helpful role here. A bell gives a quieter, more cautious cat a little advance warning that a more confident housemate is heading their way, helping to reduce those surprise encounters that can escalate into conflict.

3. Bells Can Help Protect Wildlife

Cats are instinctive hunters. Throughout history, they've been valued for keeping rodent populations in check. But research has also shown that domestic cats can have a significant impact on populations of birds, small mammals, and reptiles around the world⁽¹⁾.

In some regions, particularly island ecosystems where native wildlife never evolved alongside cat-like predators, keeping cats indoors is strongly recommended⁽²⁾. In areas where cats do roam outside, cat collars with bells are one of the most widely used ways to reduce their impact on local wildlife.

The evidence on how well they work is mixed, but broadly encouraging. A few studies have found no measurable reduction in hunting⁽³⁾, but the majority conclude that bells lead to a meaningful decrease in the number of animals caught⁽⁴⁾. Some research suggests kills can be cut by more than half⁽⁵⁾.

You might also have heard the claim that cats simply learn to move without ringing the bell. It's a common concern, but research shows it isn't the case. Bells continue to reduce predation even after long-term use, with no evidence that cats adapt their movement to silence them over time⁽⁶⁾.

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Breakaway Cat Collar

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Alternatives to Bells for Reducing Predation

If a bell collar doesn't feel like the right fit for your cat, there are other evidence-based approaches worth exploring.

• What your cat eats can make a real difference. Feeding a high-meat, grain-free diet has been shown to reduce predation by up to 36%⁽⁹⁾.
• And so can daily play. Just 10 minutes of daily play that mimics hunting behaviour can lead to around 25% fewer prey items being brought home⁽⁹⁾. If you're looking for fresh ideas to keep your cat entertained at home, structured play sessions are a wonderful place to start.
• The Birdsbesafe collar cover is a brightly coloured fabric frill that fits over a breakaway cat collar. Studies have found it to be highly effective at reducing bird kills⁽⁷⁾ and also at lowering predation on amphibians and reptiles⁽⁸⁾. It's less effective when it comes to mammals⁽⁸⁾, which makes it a particularly good option if birds are your main concern.

Are Cat Collars with Bells Bad for Cats?

This is one of the most common questions we hear, and it deserves a thoughtful answer. For the vast majority of cats, bells are well tolerated and cause no issues at all. But there are a few situations where leaving the bell off might be the kinder choice.

1. Bells Could Increase Risk from Predators

In parts of the world where outdoor cats may encounter coyotes, wolves, or other large predators, a bell can actually work against your cat by drawing attention to them and making it harder to stay hidden. If you live somewhere with active predators, keeping your cat indoors or in a secure catio is the safest option.

2. Some Cats May Find Bells Stressful

Most cats settle into wearing a bell without any trouble at all. But if your cat is naturally anxious or easily startled, the constant sound of a bell with every movement could add unnecessary stress to their day.

As with all collar accessories, the key is to introduce a bell gradually, and only once your cat is already happy wearing their collar on its own. There's no need to rush this. Taking it slowly makes the whole experience a positive one. Our Supakit guide to collar bliss walks you through the full process step by step.

3. Do Bells Hurt Cats' Ears?

This is a worry we hear often, and it's a fair one given how sensitive cats' hearing is. However, a cat bell is generally estimated to produce a sound of around 50–60 dB, roughly equivalent to the volume of a regular conversation. Research into cat hearing shows that sustained noise above 95 dB is needed to risk gradual hearing damage⁽¹⁰⁾, so an averaged-sized bell falls well within safe levels. Concerns about pain or hearing loss from a cat bell are unfounded.

That said, some fascinating ongoing research by Pienkowski and Eggermont⁽¹¹⁾ has found that sustained exposure to moderate-level sounds can affect the way cats process audio. Their work suggests that prolonged exposure may reduce the responsiveness of the auditory cortex to sounds within a similar frequency range.

This doesn't mean that cat bells are harmful. But it does suggest that, over time, your cat's brain may start to tune out the sound of their bell, much like you might stop noticing familiar background sounds such as a nearby road or the rustle of your own clothes. That filtering could extend to other similar sounds too, which is worth being aware of, particularly for cats who spend time outdoors and rely on their hearing to stay safe.

Should Cats Wear Collars with Bells?

There's no single right answer here, and that's okay. For many cats, a bell collar is a practical, harmless addition that helps protect wildlife, eases tension in multi-cat homes, and makes them easier to find around the house. For others, particularly those who are anxious or who live in areas with larger predators, leaving the bell off is the more thoughtful choice.

What matters most is that you know your cat, and that you have the freedom to choose what's right for them. Every Supakit cat collar ships with a detachable bell, so you can always try it and see how your cat responds. If it's not for them, it takes just a moment to remove.

Collars & Bells

Breakaway Cat Collar

from £22.50

Additional Cat Bells

£5.00