Why Does My Cat Open His Mouth When He Sees A Bird?

When your cat catches a glimpse of a bird, you might notice a peculiar behavior – the opening of their mouth accompanied by a chirping sound. This phenomenon, often described as “chattering,” is a common feline behavior that can be traced back to their innate hunting instincts.

Cats are natural hunters, and even domesticated felines retain their predatory instincts. When a cat sees a bird, their primal hunting drive kicks in, triggering a series of instinctual responses. The act of opening their mouth and emitting a chirping noise is a manifestation of this predatory behavior.

As your cat locks eyes on a bird, their focus intensifies. You may observe their body posture becoming more alert and tense as they track the bird’s movements. Their eyes narrow, pupils dilate, and they may crouch down in a hunting position, ready to spring into action.

Opening their mouth while viewing a bird serves a dual purpose for cats. Firstly, it helps them enhance their depth perception, allowing them to better gauge the distance between themselves and their prey. By slightly parting their jaws, cats gain a clearer view of the bird’s location and trajectory, aiding in their aim when hunting.

Additionally, the act of chirping while observing a bird serves as a form of communication for cats. It can be likened to a form of frustration or excitement, as they anticipate the thrill of the hunt. This vocalization helps cats release pent-up energy and express their eagerness to pounce on their perceived target.

Chattering behavior in cats can also be linked to their inherent instincts to practice killing techniques. By mimicking the sound of a bird or prey animal, cats may be simulating the motions and sounds they would make when capturing their target in the wild. This behavior allows them to hone their hunting skills and stay sharp.

Furthermore, the act of opening their mouth and producing a chirping sound can be a way for cats to vent their frustration at being unable to physically reach the bird. Domestic cats often experience this behavior when watching birds through windows, where they are separated by a barrier but remain driven by their hunting instincts.

It’s important to understand that when your cat exhibits chattering behavior while observing a bird, it is not a sign of distress or discomfort. Instead, it is a natural expression of their predatory nature and serves as a way for them to engage with their environment in a manner that aligns with their ancestral hunting instincts.

While this behavior may seem strange or amusing to us as human observers, it is an integral part of your cat’s biological makeup and a reflection of their primal instincts. By allowing your cat to engage in behaviors like chattering, you are providing them with a way to express their natural drives and instincts in a safe and controlled environment.

Next time you catch your feline friend chattering at a bird, remember that it’s not just a random quirk – it’s a window into their wild side, a glimpse of the skilled hunter that lies within even the most pampered housecat.

Photo of author

Don Atkins

Don Atkins is a proud Canadian and experienced biology teacher living in Toronto. With a Bachelor of Science in Biology from the University of Saskatchewan under his belt, Don has 10 years of teaching experience and is passionate about sharing his knowledge with others. He also volunteers at the Northeastern Avian Rescue, using his expertise to help birds in need. Don's enthusiasm for ornithology is undeniable, and he loves nothing more than to share it with those around him.