No sooner the sun sets, you find that your cat has not yet come inside. Soon she returns coated in the dirt with her nose held-high. You realize that she has been wandering around outside again. You may assume that she gets dirty to make you made, but she actually has good reasons.
Why do cats roll in dirt?
Cats stroll around in the mud for most of the same reasons as dogs, and this includes staying cool. If there is a hole in your backyard, you will notice that the dirt underneath the top dry layer is soft and moist. This dirt layer contains some water, which makes it a bit cooler than the outer layer that gets hot in the sun. So your cat makes a little burrow to romp in to cool her down after an afternoon hunt.
Leave her marks
A cat heavily relies on her smell sense. After all, it allows her to get familiar with her environment. She has a special scent organ in her mouth that lets her collect more information by sensing something interesting. Perhaps, another cat left her mark there lately, making the place smell funnier. From her scent glands on the face and paws, your cat will put as much of her signature as possible by rolling in the dirt. When the other cat returns again, she will understand that this place is already spoken for.
Scratch the itch
If your cat scratches herself constantly and rubs against a furniture piece after returning home dirty, it might be an indication of parasites. Fleas and/or other varmints could be lurking in her fur, compelling her to do anything to get rid of the itch. Check the fur of your cat for any sign of unwelcome bugs. Find out dander and irritated red patches. All such clues will tell you that she might be suffering from a skin condition and need a visit to the vet.
Your yard is just like a magical playground for your pet. She has birds to chase, trees to climb, flower bed to roll in and grass to nibble on. In case your four-legged family member spends a lot of time in the backyard, she could be rolling and strolling round in the dirt just to entertain her. So burrowing herself in the mud most of the time is a way to keep occupied till you return home.