2 new Canon telephoto lenses

The first is an f/2 200mm -- interesting & heavy, but probably of little use in bird photography. The second is much more fascinating -- an 800mm f/5.6 lens; the key to this one may very well be the weight -- a lot of photographers do not use the current 600mm because it is so difficult to carry for long distances. Not much information is available yet, but you can read a little more here.