SANTA CLARA – The protests of some 49ers fans directed at CEO Jed York were seen high above the team’s home stadium on Sunday.

A plane circled Levi’s Stadium on Sunday before the 49ers’ game against the Arizona Cardinals that towed a banner that read: "Jed & 49ers Should Mutually Part Ways.”

The banner was the idea of self-described long-time 49ers fan Conor McGuire, according to NinerFans.com. McGuire opened a Go Fund Me campaign that raised $1,059 for the demonstration. The cost for six to eight laps around the stadium was $549, according to the page.

Just moments after the 49ers’ final game of last season — a victory over the Cardinals — the 49ers announced that the team and then-coach Jim Harbaugh had agreed to mutually part ways following an 8-8 season. Harbaugh’s team advanced to the NFC Championship game, with one Super Bowl appearance, in his three previous seasons.

Harbaugh is now coaching at Michigan, his alma mater. The bowl-bound Wolverines concluded the regular season with a 9-3 record.

Under first-year head coach Jim Tomsula, the 49ers are 3-7 entering Sunday’s game against NFC West-leading Arizona.