I don't know the exact day she was born, but I remember it was mid-September. So I'm calling the 15th Ruthie's birthday. I was trying to think of something special to give her other than her normal Greenies treats. One of my friends mentioned her cat likes cheese, and I remembered that's one of Ruthie's favorites, too. So I went to the organic grocer and picked up some local-made cheese. I think she enjoyed it.