We booked two kiwi walks on Stewart Island in our three nights there: one with Beaks and Feathers and one with another company. We should have booked two with Beaks and Feathers. Based on our experience, I would highly recommend you spend a night with Ange looking for kiwi. We found two birds very quickly and got extended looks at both. I think it also speaks volumes that everyone that we talked to on the Island seemed to know Ange and everyone gave positive reviews.