Celebrations of the West Coast Eagles victory has taken a sickening turn with graphic footage of a man biting into a dead magpie posted to social media.

In the confronting vision, the magpie is stomped on and offered to a dog before a man identified as Jesse picks it up, bites it and throws it away.

The vision is accompanied by a man’s aggressive, profanity-laden commentary.

“All I see is a f***king dead magpie. Drop it, step on the c**t!”

The footage was uploaded to social media and it is not known where the footage was taken.

RSPCA Executive Manager Community Engagement Maree Daniels confirmed the organisation had received multiple reports about the vision which emerged late yesterday and an investigation was underway.

"Receiving this footage has certainly marred the weekend’s celebrations,” she said.

“At no time is it funny or cool to interfere with our native wildlife.

“The number of messages we have received, and the outcry about this stupidity on social media, shows that the community does not tolerate this kind of senseless behaviour."

She urged anyone with information about the incident to call its animal cruelty hotline on 1300 278 3589 or to make a report online.

It comes after four men were charged over the brutal killing and torture of two kangaroos last week and a man was arrested over an incident in which several emus were mown down on a dirt track in NSW near the South Australian border.