All About Birds is a website from the Cornell Lab of Ornithology that includes information about watching birds, learning their nesting behaviors, attracting birds, indentifying them, recording observations, and getting involved in bird conservation. The site includes guides, images, maps, sounds, videos, and much more. There is also a link to the Macaulay Library, an archive of animal sounds and videos.
I thought- winter (see the first two sentences) would be a great time to prepare for Spring- study the birds, listen to their songs. Think warm thoughts!
kls