Caussin had five catches for 41 yards in six games, including two starts,
Nike Air Max 1 Suomi, with Buffalo in 2011 after being promoted off the team's practice squad. He broke into the NFL with Jacksonville in 2010 as an undrafted free agent, but did not play a game with the Jaguars.
The Bills have a need at tight end, with starter Scott Chandler becoming a free agent.