OMW! I laughed so hard! But I am a silly woman.
You asked what kind of cat behavior this is. I am no cat expert, but it looks to me like the ginger cat is confronting the other cat for being on the ginger cat’s territory. I would think that the confrontation ended in one of two ways:
1) a beat down by the ginger cat, or
2) a surrender by the black cat in the form of turning its head away and then leaving.
Our dog Nemo(Half pomeranian/half maltese) does the same thing when the other dog Max(Shih Tzu) comes into his territory, he growls at him like crazy