Best lens for teleconverter on a Cannon A610?

[chupicabra30]

I want to take bird pics and while the digital zoom does a pretty good job, I want better. This camera has the option of using a teleconverter and then I guess being able to use lenses with it. I was wondering which lens and teleconverter would be good for taking fairly good bird pics.

Thanks in advance.

[chupicabra30]

Did I post this in the wrong place?

Any help would be greatly appreciated.