Barrie Heather

About the Authors: Dr. Barrie Heather is a renowned New Zealand bird expert. Dr. Hugh Robertson is at the Department of Conservation in Wellington, New Zealand. Derek Onley is a leading New Zealand bird artist.

About the Authors: Dr. Barrie Heather is a renowned New Zealand bird expert. Dr. Hugh Robertson is at the Department of Conservation in Wellington, New Zealand. Derek Onley is a leading New Zealand bird artist. See less