I love birds so I decided to make a theme pack with some high resolution wallpapers. I got most of them from interfacelift.com, a FANTASTIC wallpaper / photography website. Even if you don’t like birds you will find a wallpaper there that suits your fancy.
You need Windows 7 or 8 to install this. Most of the photos are 1920×1080 and so appear best on a widescreen monitor.