Aye they have a book for the Splintered light minis which should cover all the animals you would need
It's called "Song of the Splintered Lands". as seen here:
http://www.ganeshagames.net/index.php?cPath=1_6 SBH is my favorite fantasy skirmish game by far, and SSL is simply SBH with creature warband lists, some scenarios and background. SSL is my favorite of the SBH books. Also, note that SSL used to be a supplement, but now it's a standalone book that has all the rules included.
I like sentient animal miniatures and mostly do 28mm (though the SSL figs have been tempting me for years). Glad to see this post as there are some here I hadn't heard of.