This cat used to visit this house and be let in by the previous owner. The new owner refused entry. The cat sees the new owner as a hostile to be removed to allow entry. He yowls in the feline pre-fight way to achieve that objective.
Note: Some older videos on this page were hosted on Vimeo. That account has now been retired, so a few video blocks may appear blank. Thanks for understanding — there’s still plenty of cat content to enjoy!