Why Do Dogs Always Bark at Cats? Expert Advice Here!
Alright, let's talk about this whole dogs barking at cats thing. I've seen it plenty myself, had a front-row seat really.

It started way back when I brought home Buster, my old terrier mix. Sweet dog, really, but the moment he spotted Mrs. Higgins' fluffy Persian cat next door, it was game on. Instant barking fit. Not just a 'woof', but that high-pitched, frantic yapping.
First Encounters
At first, I figured it was just a new thing. New yard, new smells, maybe the cat just surprised him. So, I'd pull him back, tell him 'no', the usual stuff. But it happened every single time. Cat appears, Buster goes nuts.
I spent a lot of time just watching them, trying to figure it out from my end. What was going through Buster's head?
What I Noticed:
- He'd stiffen up the second he saw the cat, even before the barking.
- His tail wasn't wagging happily, more like straight up or twitching fast.
- The barking got louder if the cat ran. If the cat just sat there, sometimes he'd bark less frantically, more... frustrated?
Trying to Understand Why
I started thinking it wasn't just random noise. It felt like he was saying something. Maybe it was:
- Territory: "Hey! This is my yard! Get out!" That seemed likely, especially when the cat was close to our fence.
- Prey Drive: Terriers were bred to chase small critters. Maybe the cat just flipped that switch in his brain? The way he lunged when the cat darted off kind of supported this.
- Excitement/Frustration: Maybe he just wanted to play or chase, and the cat wasn't cooperating? The barking sounded really wound up.
- Fear?: Honestly, sometimes the cat would hiss or swipe, and Buster would jump back, still barking. So maybe a bit of fear mixed in?
I tried working on it, you know? Distraction with treats, 'look at me' command. Sometimes it worked, sometimes the cat was just too interesting, or too much of an invader in his mind.
Living With It
Over the years, Buster never fully stopped barking at cats, but it got... less intense? Maybe he just got older, or maybe he kinda figured out the neighborhood cats weren't really a threat, just annoying neighbours. He'd still bark, but it was more of a grumbly announcement than a full-blown panic.
So, why do they do it? From my experience watching Buster, it wasn't just one simple reason. It felt like a mix of instinct, territory defense, maybe a bit of wanting to chase, and just the general excitement of seeing this other weird, furry creature that wouldn't play by dog rules. Every dog's probably a bit different, but that's what I saw with my own eyes, living through it day after day.
