Second decapitated cat found in Adelaide

A decapitated cat has been found in Adelaide's northeast, the second such incident reported to the RSPCA in a week.

The headless body was found by a couple walking their dog on Friday at Golden Grove.

It followed the discovery last week of the head of another cat in the backyard of a home at nearby Wynn Vale.

The two deaths have prompted the RSPCA to warn all cat owners in the area to contain their pets to their properties.

Chief Inspector Andrea Lewis said they did not have any strong leads to identify who was responsible for either killing.

"It could be the same person or persons responsible, or it could be two entirely separate cases, we just don't know at this stage," Ms Lewis said.

"These awful incidents are a reminder of how vulnerable our pets are if they're allowed to wander."