After sequence 6 go to the Davenport Homestead and stand right next to any corner when you are outside the house.

Then enter stealth mode and you'll lean against the wall of the house. Press B to whistle and a turkey should appear.

Once it does, highlight it and press: Up, Up, Down, Down, Left, Right, Left, Right, B and A quickly.

You will feed the turkey and it will wear an Assassin's hood and follow you around!