Assassin's Creed 3 - Guide to find all feathers
Unlike the previous chapters, in Assassin's Creed 3 there are no achievements / trophies related to finding the collectible feathers. This does not mean, however, that it is useless to find them all, on the contrary.
First find all the feathers it is necessary to complete the game 100% and thus unlock the result
Completionist - Complete all items on the progress meter.
Not only that, you can also unlock one of the extra costumes available in the game (as explained in the costume guide).
The feathers to find there are 50 in total, most of them are easy to retrieve as they are positioned in clearly visible places such as on top of trees or the like, but some are really well hidden in buildings or caves.
In the game, for feathers as for all other collectibles, you can buy one map indicating the exact location of each feather. If you want to save those 10.000 credits for more, here's a video showing where and how to get all the feathers. Good hunting!
In the Assassin's Creed 3 tab we have many other guides on this fantastic game, don't forget to visit it.