There are about 35 to 40 species of birds in the park and include the kea, the only alpine parrot, and the well-camouflaged pipit. The tiny rock wren/pïwauwau, a threatened species, is the only permanent resident high on the mountains. It is unrelated to the rock wren of North America. Small insectivores such as the riflemen/tïtitipounamu and the New Zealand fantails/pïwakawaka live in the low forest and scrub, along with small numbers of two larger birds, the wood pigeon and morepork. Introduced species such as finches and sparrows live throughout the bush near Mount Cook Village. The black stilt or kakī, rarest wading bird in the world, lives in the braided riverbed of the Tasman.