The above incident is described by When Saturday Comes’ Tom Hocking :

Blackburn Rovers fans have made it their business to protest against manager Steve Kean and owners Venky’s this season. Last night a fan managed to smuggle a chicken into Ewood Park and, adorned in a Rovers flag and a “Kean Out” placard, it was released onto the pitch in the seventh minute. Wigan goalkeeper Ali Al-Habsi and Blackburn’s Yakubu formed an unlikely partnership to corner the fowl in the goal net before capturing it and handing it to a steward.