There are a lot of good reviews on the internet for many of the telephoto and super-telephoto lens options used for birding and/or safari. The trouble is that one has to do a lot of searches to find the info.
I am beginning a collection of these reviews at this link
Lens Review for
www.ChobeSafari.com. Over time, I hope to add to the list of options as well as the list of reviews. Currently the list is focused on lens options that will fit either a Canon or Nikon body. If you have knowledge of any major lens options missing or if you have seen other good reviews, I would appreciate feedback as I think the entire community can benefit from the list.
EDIT:
I HAVE CORRECTED LINKS, Sorry for the problem.