Traversia lyalli


Taxonomy [top]

Kingdom Phylum Class Order Family

Scientific Name: Traversia lyalli
Species Authority: (Rothschild, 1894)
Common Name(s):
English Stephens Island Wren
Xenicus lyalli lyalli Sibley and Monroe (1990, 1993)

Assessment Information [top]

Red List Category & Criteria: Extinct ver 3.1
Year Published: 2012
Date Assessed: 2012-05-01
Assessor(s): BirdLife International
Reviewer(s): Symes, A. & Butchart, S.
Facilitator/Compiler(s): Brooks, T., Khwaja, N. & Mahood, S.
This species is known from Stephens Island, New Zealand, but became Extinct in 1895. A combination of development on the island and predation by introduced cats is thought to have driven its decline.

Geographic Range [top]

Range Description: Traversia lyalli is only known from recent times from Stephens Island, New Zealand (Greenway 1967), although it is common in fossil deposits from both of the main islands (Worthy and Holdaway 1994). It was extinct by November 1895, but it had survived into that year, with Travers finding a cat-caught specimen in February (Tennyson and Martinson 2006).

Regionally extinct:
New Zealand
Range Map: Click here to open the map viewer and explore range.

Habitat and Ecology [top]

Habitat and Ecology: The species was flightless and restricted to the rocky ground (Millener 1989).

Systems: Terrestrial

Threats [top]

Major Threat(s): Construction of a lighthouse on Stephens Island in 1894 led to the clearance of most of the island's forest, with predation by the lighthouse keeper's cat delivering the species's coup-de-grace (Tyrberg and Milberg 1991).

Citation: BirdLife International 2012. Traversia lyalli. The IUCN Red List of Threatened Species. Version 2015.2. <>. Downloaded on 30 August 2015.
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