The RSPCA has attended the scene on Monday morning, but it appears someone beat them to it as a lot of the bones have been cleared, as well as the hessian sack and blue tarpaulin.

Some skeleton remains were found, with the RSPCA confirming they were canine remains and they have been examined and cleared to form part of an RSPCA forensic examination.

When asked if the site has been tampered with, RSPCA inspectorate northern region head Scott Myers said “100 per cent”.

“I wouldn’t like to say at this stage whether they are greyhound remains,” Mr Myers said.

EARLIER

THE RSPCA and police have been alerted to a discovery of scattered bones, suspected to be those of dogs, in bushland at Port Stephens.

The bones were found in a gully at Swan Bay and included several skulls cracked in similar ways, the two cyclists who discovered them said.

Tracey Sneddon and Bobbie Antonic, both of Swan Bay, notified police and the RSPCA of their find.

Ms Antonic said she had looked into the gully and also found a hessian sack and a blue tarpaulin.

“It’s quite steep where it is. I saw two skulls and, on closer inspection, they both had cracks in the same spot,” Ms Antonic said.

“I thought that was odd. I saw more bones; spines, backbones, bits and pieces. Then I saw about seven skulls, with the same sorts of injuries.”

Last month, investigators found evidence that 99 greyhounds were killed at a Hunter Valley property and buried in a mass grave.

The RSPCA could not be reached for comment on Sunday night.