Career
He was signed by the Green Bay Packers as an undrafted free agent in 2007. He played college football at Oklahoma. Birdine was a two-sport letterwinner at Eisenhower High School in Lawton, Oklahoma, Birdine competed in football and track during his prep career and received consensus All-state honors as a senior and totaled 147 tackles, eight sacks and 24 tackles for losses in his final two seasons.
He compiled 81 tackles, 14 stops for losses, four sacks, three fumble recoveries and one blocked punt as a senior.
He competed in shot put and discus on the school’s track team Birdine played 41 career games (14 starts) at the University of Oklahoma, where he totaled 103 tackles (61 solo), 14.5 sacks, four forced fumbles, one fumble recovery, one interception and seven pass breakups.
He was a part of Oklahoma’s 2003 and 2004 teams that played in the British Computer Society National Championship Game (Sugar Bowl) in 2003 versus Louisiana State University and (Orange Bowl in 2004 vs University of Southern California).
He played 14 games (13 starts) as a senior, posting 39 tackles, 3.5 sacks, one forced fumble and two pass breakups.
Maine missed the 2005 regular season due to a torn left biceps muscle but returned to play in the Holiday Bowl against Oregon. He played all 13 games (0 starts) as a sophomore and registered career highs in tackles (40), tackles for losses (11), sacks (7), pass breakups (4) and forced fumbles (2) to go along with a fumble recovery. As a redshirt freshman, he played all 14 games (1 start), totaling 24 tackles (15 solo), four sacks, one forced fumble and his only career interception.
Pre-draft
Birdine measured 6-3½, 261 pounds, and ran a 4.76 40-yard dash, did 21 reps of 225 pounds on the bench press
At his Pro day he did the 20-yard Shuttle in 4.52 seconds and the Three-Cone drill in 7.47 seconds. Tennessee Titans
Birdine, who entered the NFL with Green Bay as a college free agent on May 4, 2007, was waived by Green Bay September 1, 2007.
Signed by Tennessee (practice squad) September 4, 2007, then signed by Denver November 6, 2007. Was later re-signed by the Titans for the 2009 season.
Birdine is the half-brother of former NFL linebacker Jason Gildon.