Genus Xenicus refers to a group of small, terrestrial birds endemic to New Zealand. The genus includes three known species of wrens: the rock wren, the bush wren, and the Stephens Island wren. While there are no exact synonyms for Genus Xenicus, the term may be referred to as "New Zealand wrens" or simply "Xenicus wrens". These birds are known for their tiny size and unique adaptations, including their ability to climb and hop among rocks and vegetation in their native habitat. Unfortunately, all three species are currently listed as threatened or extinct due to habitat loss and predation by introduced mammalian predators.