Have a distinctive pale yellow uncrested band of feathers passing across the nape and around the eyes. The forecrown, chin and cheeks are black flecked with yellow, the sides of the head and the foreneck are a light fawn-brown, and the back and tail are slate blue. The chest, belly, front thighs, and the underside of the flippers, are white.
More about this bird: nzbirdsonline.org.nz