I'm looking for a mod or mods that adds animals to the forests of Cyrodiil. More specificly the little random animals like birds, squirrels, snakes, lizards and whatnot. I'm particularly interested in birds. I've spent some time searching TESnexus but after searching for "birds", "squirrels", "animals", etc. I've kind of exhausted my list of key words to search for. Any help would be apreciated.

http://www.tesnexus.com/downloads/file.php?id=2536 by Max Tael adds birds.

Please use the Mod Detectives thread in the future foer such queries. That thread is specific for such questions.

http://waalx.com/RealSwordsForum/viewforum.php?f=12&sid=cbef551c32838631a65210b7a37f5f2c adds an unholy crap-ton of different animals to the game. Some are passive, some aren't, but all of them are well done and I can't play without it anymore. :B

Any more in addition to those two?
Not looking for huge compilations like MMM, but just a few things like rabbits, foxes etc, to enhance the wilderness.

Not to hijack this topic, but my question is related to wildlife.

Are there any animal mods that add birds you could actually kill? Like for instance, a flying bird I could go hunt, like a duck or a miraculously flying chicken?

You have duck and raven or crow in WAC, as well as pheasants, terror birds, road runners and maybe some other birds. But the problem is that even those birds like that duck or raven are just faking flying like imps in vanilla game.
There is currently no mechanism that would support real flying creatures that fly without being driven by player (like Akatosh mount for example).
Chicken are present in MMM.

There are ambience birds like seagulls and vultures by Mr. Siika and you can find them in various mods, for example Elsweyr Anequina. But they aren't creatures but animated objects instead and you cannot interact with them.

Also, there's an eagle in Midas Magic made in same style as duck and raven from WAC.

Suddenly I miss cliff racers. Who'd have seen that coming?