What does it mean?

This.

"A winged cat has been killed by villagers near the Central Russian city of Kursk. The locals drowned the deformed puss after believing it was a messenger of Satan, the Komsomolskaya Pravda newspaper reports.

On entering her yard, Nadezhda Medvedeva saw how a stray cat stood up and, just like a chicken, stretched out two wings. She said that at that moment her hair stood on end. The locals had no doubt the unlucky cat was a messenger of the devil, the Vlasti.net website writes...

...Nadezhda Medvedeva went out and saw how the cat slowly moved its wings exactly as a chicken would. The woman immediately came to the conclusion that the cat was sinister, “just like a sort of devil”.

The daughter, having already named the cat Vaska, claimed he was affectionate and had obviously been a pet.

The rumor of the winged cat soon reached Kursk, but by the time a correspondent got wind of it the cat had already been killed by a local drunk, who drowned the unique feline. A sack with the animal’s body was recovered later from a pond near the Medvedev’s home. Despite the fact decomposition had already set in, the correspondent form the local Komsomol newspaper confirmed the cat did actually have wings."