Some kinds of birds can be found all over the world, like the Canada goose that has invaded most places in recent years. Other species can only be found in very limited parts of the globe. New Zealand was specialised in some kinds of birds that 'forgot' how to fly. Why do all the effort when there is no-one to flee from? The Kiwi and some others like the Pukiko are now in danger of extinction, because we humans have imported dogs and cats and other dangers. Wouldn't it be sad if this beautiful country was represented by an extinct bird? Keep your dog on its leash!