Another excellent article about documenting rarities can be found at Greg Lasley's Texas Bird Records Committee site.
How to Write Convincing Details And the following: Bird Sounds Cornell Laboratory of Ornithology Crossbills AV Guide Ducks at a Distance Nutty Birdwatcher "What Bird ?" Identification Web Site
How to Write Convincing Details
And the following: Bird Sounds Cornell Laboratory of Ornithology Crossbills AV Guide Ducks at a Distance Nutty Birdwatcher "What Bird ?" Identification Web Site