Who doesn't love to watch Tūī? Who doesn't love those colours, almost too good to be true - the deepest, glossiest, most lustrous of deep blue, the iridescent turquoise, the crisp-as-a-vicar's-collar white tuft?
Who doesn't love the way they move, swooping as swift as a jet or occasionally bashing the hell out of the air with their wings as though they’v…