The Final Decisions for BirdLife's 2012 Red List were recently published (see
http://www.birdlife.org/globally ... -the-2012-red-list/)
These include the decision to upgrade Baer's Pochard from Endangered to Critically Endangered, following serious concerns about a severe decline in numbers and loss of sites. This decline has also been noted in Hong Kong, where the recent obliging bird is the first seen by most observers for several years. The decision to upgrade to ciritcal was pended in 2011 and in the draft list for 2012, so data from this winter presumably show the situation to be very serious. Discussion on the BirdLife website suggests the population is now less than 1000 individuals.
The only other change relevant to Hong Kong is Black Scoter, which is a newly recognised split from Common Scoter proposed to be listed as Near Threatened. Eastern Imperial Eagle remains as Vulnerable, while Greater Scaup and Chinese Hwamei remain Least Concern.
I think the following list of Hong Kong threatened species is up to date, but if anyone notices any errors please point them out.
CR
Baer's Pochard, Christmas Island Frigatebird, Siberian Crane, Spoon-billed Sandpiper, Yellow-crested Cockatoo (native popluations only)
EN
Oriental Stork, Japanese Night-heron, Black-faced Spoonbill, Nordmann's Greenshank
VU
Philippine duck, Lesser White-fronted Goose, Dalmatian Pelican, Swinhoe's Egret, Greater Spotted Eagle, Eastern Imperial Eagle, Eastern Curlew, Great Knot, Relict Gull, Saunders's Gull, Japanese Murrelet, Fairy Pitta, Brown-chested Jungle Flycatcher, Manchurian Reed Warbler, Styan's Grasshopper Warbler, Yellow-breasted Bunting, Japanese Yellow Bunting
NT
Japanese Quail, Falcated Duck, Ferruginous Duck, Black Scoter, Black-headed Ibis, Cinereous Vulture, Band-bellied Crake, Asian Dowitcher, Black-tailed Godwit, Eurasian Curlew, Japanese Waxwing, Rufous-rumped Grassbird, Japanese Swamp Warbler, Japanese Paradise-flycatcher, Japanese Reed Bunting, Collared Crow