Thanks to the efforts of several emerging databases around the world, naming a bird from its feathers has become a lot easier.
Backyard Birding Episode 4: Birds of All Feathers
Books - Birds & Birding - Foreign Field Guides - Page 1 - Feather Edge Optics
Birds of a Feather on Working Lands
The Bird Watcher's Journal (birding Log Book; Birding Field Diary; Birder Gifts) - (outdoor Journals) By Weldon Owen (paperback) : Target
Bird ID « The Infinite Spider
The Feather Atlas - Feather Identification and Scans - U.S. Fish and Wildlife Service Forensics Laboratory
Books - Birds & Birding - Foreign Field Guides - Page 1 - Feather Edge Optics
The Birdchaser: Evolution of the Bird Photo Field Guide
The Feather Atlas - Feather Identification and Scans - U.S. Fish and Wildlife Service Forensics Laboratory
What's That Feather? Great Tools and Books to ID Unknown Feathers - A Magical Homeschool
A Traveller's Guide to Feathers
Feathers NHBS Field Guides & Natural History
Used Book in Good Condition
National Geographic Birding Essentials: All the Tools, Techniques, and Tips You Need to Begin and Become a Better Birder
The Feather Atlas - Feather Identification and Scans - U.S. Fish and Wildlife Service Forensics Laboratory