FLOWERY BRANCH – The Atlanta Falcons kicked off their rookie minicamp on Friday, welcoming 46 players to the headquarters . That group consists of the six drafted players, 14 undrafted free agents, 21 non-rostered invitees, two veterans trying out, and three veteran Falcons.  All told, there was not a lot of football happening. Instead, there was a lot of drill work and just moving around.  This period is intended more for the rookies to begin acclimating to life at Flowery Branch , learning where things are, how the schedule works, and getting to know their coaches.…