I like using feathers in my photo manipulations but unfortunately they are so difficult to crop and I waste a lot of time. So when I am in a hurry I use brushes instead of real stock images. In this list I have gathered over 100 beautiful feather brushes ready to be used. They are mostly deviantart brushes, hand picked, and even if I did not downloaded all of them, they have great reviews.
So if you need photoshop feathers simply download these brushes and use them in your designs. Be careful and check the Photoshop version of each brush so that you don't have compatibility problems.