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-   -   Extinct Neotropical subspecies (https://www.birdforum.net/showthread.php?t=210593)

Richard Klim Thursday 8th September 2011 12:51

Extinct Neotropical subspecies
 
BirdLife's Globally Threatened Bird Forums:

Richard Klim Friday 9th September 2011 11:16

...and Asian/African
 

Mysticete Friday 9th September 2011 15:48

for the Asian taxa, is the Miyako Kingfisher even considered a valid taxon on the subspecies level? This is the same taxon as the "Ryuku Kingfisher" correct.

My understanding was that there were still a very few (<10) Ogasawara Wood-Pigeons around as well

Richard Klim Friday 9th September 2011 16:52

Miyako Kingfisher
 
Quote:

Originally Posted by Mysticete (Post 2236758)
for the Asian taxa, is the Miyako Kingfisher even considered a valid taxon on the subspecies level? This is the same taxon as the "Ryuku Kingfisher" correct.

It was mentioned in this earlier thread.

Richard Klim Friday 9th September 2011 16:55

Red-headed/Ogasawara Wood Pigeon
 
Quote:

Originally Posted by Mysticete (Post 2236758)
My understanding was that there were still a very few (<10) Ogasawara Wood-Pigeons around as well

BLI states that it is thought to have gone extinct in the 1980s, citing Baptista et al 1997, which is inconsistent with these posts on kantori:

Yuko Sasaki, 5 Jun 2000:
Quote:

The endemic pigeon still exist.
Japanese Wood Pigeon subspecies Columba janthina nitens [Akagashira Karasubato]'s news was on "Wildbird News". A researcher on bird succesfully took its photo in January 2000, even though nobody took its photo since 1998. Recent estimated number of this species is only ten !!!!!! 10 birds, so pitty.
Richard Carden, 10 May 2005, Ogasawara mini report - GW:
Quote:

NOT SEEN was Japanese Woodpigeon, (Akagashira Karasubato) the Ogasawara sub species is now down to around 20 birds, all pretty loyal to the Sekimon area of HaHaJima. This area is protected and you should not enter without a guide, you cannot enter the area at all from Nov - Mar inclusive. Unfortunately we had a trail of disaster trying to see this bird...
Mark Brazil, 20 Jun 2006, Black/Japanese Woodpigeon:
Quote:

The race of Columba janthina (nitens) endemic resident on Ogasawara/Iwo islands, is often described as extinct, but OSJ (2000) considered it extant. Does anyone know its current (i.e. post 2000) status?
Yoshiki Watabe, 20 Jun 2006:
Quote:

Columba janthina nitens is not extinct, but is treated as a endangered subspecies by Ministry of the Environment(2002).

Ministry of the Environment(2002) described as follows;

"Columa janthina nitens is one of three subspecies of C. janthina, a large wood pigeon endemic to Japan. This subspecies occurs only on the Bonin and the Volcano islands, where it feeds mainly on fruits in mature broad-leaved evergreen forest. The minimum population is estimated to be 30 to 40 birds. The reduction in the area of its forest habitat, coused by browsing by introduced goats, and human-related deforestation, is considered to be the major threat to this subspecies."

Reference:
Ministry of the Environment (ed.) 2002. Threatened Wildlife of Japan - Red Data Book 2nd ed.- Volume 2, Aves. Japan Wildlife Research Center, Tokyo.
[Brazil 2009 accordingly describes it as rare (30-40? birds).]
Nick Lethaby, 20 Jun 2006:
Quote:

It definitely is extant. There were two nests last year on Chichijima. Marcel (a dutch guy) is helping monitoring them. What is presumably this subspecies is also common on the one unspoiled island in the Iwo-jima group.
An image taken by Chikara Otani in Dec 2003: OBI.

Mysticete Friday 9th September 2011 17:57

The Kantori postings were the main source of information on it still being extant. Part of the planning of a sadly aborted trip to the Ogasawaras last summer :(

Richard Klim Friday 9th September 2011 18:27

Quote:

Originally Posted by Mysticete (Post 2236840)
Part of the planning of a sadly aborted trip to the Ogasawaras last summer :(

Yeah, I'd really like to visit. But the logistics are a headache, with the need to allow for weather delays/cancellations - difficult with fixed long-haul flights. One day maybe, but in reality, probably not...


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