You turn into an eagle.
collect them in all the cities.........ps----easy
Assassin's Creed 3 hasn't come out yet, but in Assassin's creed Brotherhood you get the "In Memoriam" trophy or achievement.
You walk in to them
Collect 50 feathers, and the last weapon, a new warhammer, will be available in the Monteriggioni blacksmith.
Maria gives you the Auditore Cape, which makes you notorious as long as you wear it.
You unlock the Auditore Cape and the final warhammer becomes available for purchase.
You have to collect all of the seals from the assassins tombs. Then place them on the assassin statues.
After 50 feathers you receive a special weapon.
it is the condottiero hammer. you unlock it when you have put 50 feathers in the chest in maria's room in the Villa Auditore
How do you get all the feathers in the assassins creed game.
By beating the game.