DELHI: They are Australia's birds of affray. Track cyclist Shane Perkins last night became the second Australian athlete in as many days to flip the finger at Commonwealth Games officials, joining disgruntled wrestler Hassene Fkiri.

Perkins will be disciplined by Cycling Australia for an angry two-fingered salute at officials, who cited him for dangerous riding in the semi-final of the keirin and disqualified him from the gold medal ride-off.

"We are disappointed with what Shane did, and the gesture, and we don't believe it's acceptable," sprint coach Gary West said. "We have put steps in place to deal with that in-house as well.

"Growing up, we are all taught to accept the umpire's decision, and we need to live and die by that."