There is a series of books by Erin Hunter, Warrior Cats!

The story follows a colony of feral cats. All the cats talk. Read them in order, for proper character development, and to follow plot lines. Written for young adults, each one is an easy read, and very true to life, IMO. Only liberty she takes: the cats mate for life. (I did say this is a series for young adults! )

Here is the web site:
http://www.warriorcats.com/warriorshell.html