||Amaurornis magnirostris Lambert, 1998
||del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A. and Fishpool, L.D.C. 2014. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Volume 1: Non-passerines. Lynx Edicions BirdLife International, Barcelona, Spain and Cambridge, UK.
||30.5 cm. A large, dark and robust bush-hen with a strikingly robust bill. Head dark brown; upperparts dark rich brown; underparts very dark grey, but flanks and thighs more like upperparts. Bill pale green, legs olive-brown, yellow at front. Similar spp differs from A. moluccana in its darker underparts which lack pale undertail-coverts, but is very similar to though slightly larger than the allopatric Plain Bush-hen A. olivacea. Large headed, with a broader bill than other species and a distinctly arched culmen.
|Red List Category & Criteria:
||Butchart, S. & Symes, A.
||Lambert, F., Riley, J., Wardill, J. & Dymond, N.
||Bird, J., Butchart, S., Taylor, J., Martin, R
This species is endemic to a small island and has a single small population which is in decline owing primarily to habitat loss. It therefore qualifies as Vulnerable.
|Previously published Red List assessments:|
- 2012 – Vulnerable (VU)
- 2008 – Vulnerable (VU)
- 2007 – Vulnerable (VU)
- 2004 – Not Recognized (NR)
- 2000 – Not Recognized (NR)
- 1994 – Not Recognized (NR)
- 1988 – Not Recognized (NR)
|Population:||Riley (2003) estimated the population to number 2,350-9,560 individuals, thus here it is placed in the band for 2,500-9,999 mature individuals. This roughly equates to 3,750-14,999 individuals in total, rounded here to 3,500-15,000 individuals.|
Trend Justification: The species is suspected to be in decline owing to hunting and forest degradation. The likely rate of decline, however, has not been estimated.
|Current Population Trend:||Decreasing|
|♦ Number of mature individuals:||2500-9999||♦ Continuing decline of mature individuals:||Yes|
|♦ Extreme fluctuations:||No||♦ Population severely fragmented:||No|
|♦ No. of subpopulations:||1||♦ Continuing decline in subpopulations:||Unknown|
|♦ Extreme fluctuations in subpopulations:||No||♦ All individuals in one subpopulation:||Yes|
|♦ No. of individuals in largest subpopulation:||100|