IUCN threat status:

Near Threatened (NT)

Distribution

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Range Description

Ducula whartoni is endemic to Christmas Island (to Australia), in the Indian Ocean. Numbers have apparently fluctuated, and perhaps declined, between the time of the island's settlement in 1888 and the mid-1970s, but no good data are available. In 1975, the population was estimated at 10-100 breeding pairs. The breeding population was estimated at c.1,000 mature individuals in 2000, and at 5,000 mature individuals byt Garnett et al. (2011). However, it is widespread and considered very common on the island, and the total population probably exceeds the 2000 estimate by at least an order of magnitude (D. James in litt. 2007). This is supported by surveys in 2005 and 2006, in which the species was recorded during 92% of point counts and at 98% of surveyed sites (James and Retallick 2007). At the end of the 19th century, it was unsuccessfully introduced to Cocos-Keeling Islands (to Australia). It occupies a range of no more than 137 km2 (D. James in litt. 2007).

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Source: IUCN

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