Tag: Possibly Extinct

Rarest birds in the World: New Caledonian Owlet-nightjar (Aegotheles savesi)

This species is known from two specimens, and a single sighting in the 1990s and only three other reports. It is classified as Critically Endangered on the basis of a very small population which is probably in ongoing decline. It is a 28cm, large, dark owlet-nightjar. Plumage rather uniformly vermiculated grey-brown and black. The short […]

Rarest birds in the World: Nightingale Reed-warbler (Acrocephalus luscinius)

This species qualifies as Critically Endangered because the very rapid rate of decline is expected to increase owing to habitat loss and degradation. This is combined with the impact of introduced predators including brown tree snake on Saipan. It is a 18 cm large, scruffy-looking warbler with long bill and erect head feathers when singing. […]

Rarest birds in the World: the Millerbird (Acrocephalus familiaris)

This species occurs on one extremely small island and undergoes marked population fluctuations, owing to climatic events, reducing it to tiny numbers. It is a 13 cm small, inconspicuous, thin-billed warbler. Brown above, darkest on crown, white below. It sings a simple song of rapid, metallic notes. It is endemic to the steep, rocky island […]