Dear Editor, Regarding the article “The Bloodthirsty Killers of Circle C” [News, Dec. 9], I think that Rachel Proctor May is a very talented writer, and I appreciate her well-balanced article about the free-roaming cat problem in Austin and my quest to educate folks on it. My only comment to the Chronicle is their choice of the letter to the editor that someone chose to publish in the printed edition. One writer suggests that it easier to "bell" a cat which is the biggest misconception [“Postmarks,” Dec. 16]. Putting bells on cats doesn't work. Cats stalk slowly and often wait in ambush to catch their prey. There is no time for the bird to escape when it hears the bell, if it hears the bell. Birds and other wildlife do not associate bells with being stalked. The other was the Ph.D. who wrote a powerful letter, which was educational [“Postmarks Online,” Dec. 12] ... instead of publishing that, oh well I've got a lot of work ahead of me I can tell. Now I hope the Chronicle publishes this letter so people don't start thinking belling a cat works as a way to warn wildlife of danger!