Kingfisher in length and between in weight. The largest kingfisher in Africa is the giant kingfisher ("Megaceryle maxima"), which is in length and in weight. The familiar Australian kingfisher known as the laughing kookaburra ("Dacelo novaeguineae") is the heaviest species with females reaching nearly in weight. The plumage of most kingfishers is bright, with green and blue being the most common colours. The brightness of the colours is neither the product of iridescence (except in the American kingfishers) or pigments, but is instead caused by the structure of the feathers, which causes scattering of blue light (the Tyndall effect). In most
Numfor paradise kingfisher is affected by the logging taking place on Numfor, with much of the forest being cleared and converted for agricultural use. The bird is described as common, but the extent to which it can adapt to secondary habitat is unclear, and it is suspected that its population is in slow decline, so the International Union for Conservation of Nature has rated it to be a "near-threatened species". Numfor paradise kingfisher The Numfor paradise kingfisher ("Tanysiptera carolinae"), also known as the cobalt paradise kingfisher, is a tree kingfisher endemic to the Indonesian island of Numfor off the northwestern coast of New