I think I remember reading this chapter a long time ago. Around the time I stopped being a dub. Somtimes I feel Dawkins doesn't keep your interest when writing. Nevertheless, there's some good examples of Macro-evolution in there. It just puts into perspective that if small changes happen over a 'small' time scale then there is nothing to stop big changes from happening over a larger time scale.
You mentioned a confirmation bias towards a Creator when reading this book, Kate. Which parts have stuck out to you?
Personally I had made my mind up before I read Dawkins'. I had already read through Coyne's 'Why Evolution is True' (also an interesting read).