We haven't lived in Kentucky long, so I wouldn't know everything! Here's what I DO know:

Animal-Thoroughbred
Bird-Cardinal
Butterfly-Monarch (I think)
Grass- KY Bluegrass!
Language, State/Local Government-English
Song-My Old Kentucky Home
Tree-hmmm....I should know it but I don't
Motto: United we stand, divided we fall

I know there's LOTS more, but that's just off the top of my head...lol