Anybody is welcome to add a bird sighting, but you have to log in first. (Registration is free, no email address is required).
If the bird is already mentioned, just hit "Post Reply" and add your details. If you are the first to sight the bird, just click "New Article", name it after the bird, and then give details of the sighting. Others may appreciate a photo, either one you took yourself or one from a recognized reference such as the Patuxent Bird Identification InfoCenter.
Photos can be uploaded into the image gallery.