"When you take anything out of its context and put it against a white background you see something different," he said. It forces all attention on the subject. Most of the work I do is shot against white. It's the absence of space and colour. It forces the eye right onto the subject. In the end, all you're left with is the form and range of colours contained in the subject".For each of the photographs Zuckerman and his team erected the white backdrop - sometimes in a studio or sometimes in the middle of a zoo - and waited while handlers used various methods to encourage them into position. In some, food was placed on one side of the screen while the bird was perched at the other. On a mission to grab its snack, the animal would fly across the set with waiting Zuckerman grabbing the action."Using a very fast camera and very fast flash. I was able to freeze those moments, a gesture or flick of the wings, that are usually impossible to see. Birds are so fast you normally just get to see a flash of a shape and colour. With this equipment I was able to pick out those hidden expressions and offer a view that you can't normally achieve," he said.