on internet photo site Flickr there are dozens of photos labelled as kiwi that are actually e.g. weka, partridge, white ibis, hadada ibis, turnstones, whimbrels, oystercatchers, basically anything that is on the ground or has a long beak. Best one has to be a scarlet ibis identified as a kiwi. What I find most odd though is not so much that people would confuse an ibis with a kiwi but that the photos are usually taken in the wild in places like Sydney, India, Africa, England -- and yet the photographers still assume the birds must be kiwi. It just shows how completely ignorant your average person is of the planet they live on.
Worst outcome of a misidentification must be the Department of Conservation worker who shot a takahe on Maud Island last year in mistake for a pukeko.