From a love of ornithology or birdwatching The Reverend Peter Harris became founder of A Rocha an International Christian Environmental Agency. While in NZ he joined Tom and Di to talk about the journey, the changes he's seen and how we can maintain perspective on environmental issues as Christians. From a love of ornithology or birdwatching The Reverend Peter Harris became founder of A Rocha an International Christian Environmental Agency. While in NZ he joined Tom and Di to talk about the journey, the changes he's seen and how we can maintain perspective on environmental issues as Christians.