It frequents second growth forest, Hibiscus thickets and streamside vine-tangles, feeding on large insects and lizards Anolis sp.². There are apparently no published observations of the species nesting⁴.

Red List Category

Red List Criteria

Version

2008

BirdLife International

Taylor, J., Butchart, S.

Sherry, T., Stiles, F.

This species is classified as Vulnerable because it has a very small range and population. Introduced herbivores are degrading forests in its range, but it appears to tolerate some habitat modification and there is (as yet) no evidence of a decline in its range or population. Regular surveys are required so that trend data can be collected, and if it is found to be in decline it may warrant uplisting to Critically Endangered.

The total population is probably significantly below 1,000 individuals (F. G. Stiles in litt. 1999).

Stable

Cats are potential predators of adults, fledglings and nests, whilst rats are potential nest predators. Feral deer, pigs and goats graze suitable habitat. Pigs especially devastate the lower strata and understorey of native forests and inhibit forest regeneration^1,3. On many other islands, this combination of feral mammals has caused the extinction of numerous endemic plant and animal species. There is also low-level disturbance from increasing tourism¹. Global climate change might pose a threat in the future, perhaps through the effects of changes in weather patterns⁴.

Conservation Actions Underway
Cocos Island has been designated as a national park, but no substantive measures have been taken to reduce populations of introduced mammals³.

Conservation Actions Proposed
Conduct surveys to estimate the population, perhaps using call play-back and mist-netting⁴. Monitor population trends through regular surveys. Carry out research into the species's breeding biology⁴. Study the impact of introduced mammals. Begin to eradicate introduced mammals where feasible.