An integral part of the Tasmanian Tigers' 2004-2005 ING Cup winning team.
He burst onto the scene, making 145 after a last-minute call-up, the Tasmanian record for the highest individual one-day innings.
He has provided Tasmania with some dynamic starts in both ING and Pura Cup. A former Australian Under 19 representative, Birt was a Commonwealth Bank Cricket Academy scholarship holder in 2001.
He signed with the Tigers for three years after moving from Victoria and made his first-class debut against Western Australia in 2004/5.
Despite only playing in 17 first-class matches up to March 2006, Derbyshire signed him on the recommendation of his Tasmania colleague Michael Di Venuto.
He played for Radcliffe in the Central Lancashire League during 2005 and was planning to play in the Newcastle League in 2006 until Derbyshire's offer came along.
Called up to the Australia A squad for the Top End Series in 2006 and rewarded for an impressive first season in county cricket with a new deal at Derbyshire for 2007.
Birt scored 942 runs - at an average of 58 - in the Liverpool Victoria County Championship during 2006 for Derbyshire.