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RC Decisions 2019

This topic has been sticky by fforrest at 15/05/2019 22:16.

RC Decisions 2019

The Records Committee held its first meeting of 2019 on 27 March, and the following issues were discussed and agreed. The HK List now stands at 552 species in Cat I and II after the addition of the following:

  ●  Ultramarine Flycatcher to Cat I of HK List after review of records in 1999, 2007, late 2017 and early 2018, which are considered to form a pattern strongly suggestive of natural occurrence.
  ●  In addition, Black Swan was added to Category III based on a record of one at Mai Po on 25 February 2017.

Regarding a falcon seen and photographed at Mai Po on 23 October 2017 (http://www.hkbws.org.hk/BBS/viewthread.php?tid=26696), the RC sought advice from raptor specialist Dick Forsman, who confirmed the bird was an immature Peregrine Falcon due to its bright yellow legs, uniformly barred underwing and dark primary tips (compared with Saker Falcon, which would have paler primary tips and bluish legs).

An updated HK List is now available for download at the following link. It incorporates recent IOC species and taxonomic updates, and a review of English bird names by RC members:

HK_List_2019-03-27.xls (150.5 KB)

Taxonomic / nomenclatural changes to the HK List include the following:
  ●  Zosterops simplex was split from the revised Japanese / Mountain White-eye complex.  Subspecies simplex and hainanus was moved to the newly-recognised Swinhoe's White-eye.
  ●  Genus of laughingthrushes changes from Garrulax to Ianthocincla and Pterorhinus. This involves changes in scientific names of Black-throated Laughingthrush, Greater Necklaced Laughingthrush, Chinese Babax, White-browed Laughingthrush and Masked Laughingthrush.
  ●  Change of scientific name of Blue-winged Minla from Minla cyanouroptera to Actinodura cyanouroptera.

Geoff Carey
RC Chairman

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2019年記錄委員會的會議決定
[中文翻譯]

記錄委員會於3月27日舉行本年首次會議,討論並同意下列各項。在加入以下鳥類後,《香港鳥類名錄》第I及第II類共有522種:
  • 白眉藍姬鶲升為第I類 -- 經過覆核 1999年、2007年、2017年底及2018年初的記錄,同意記錄符合自然出現時間
  • 根據2017年2月25日的記錄,黑天鵝加入第III類

有關2017年10月23日的隼類圖片(http://www.hkbws.org.hk/BBS/viewthread.php?tid=26696),本記錄委員會曾向猛禽專家 Dick Forsman尋求意見,結果確定該鳥為游隼幼鳥,有關辦識要點為腳部鮮黃,翼下橫斑平均分佈,初級飛羽深色 (與獵隼比較,獵隼的初級飛羽較淡色,腳部呈藍色)。

最新的 《香港鳥類名錄》可於以下連結下載。本名錄包含了《世界鳥類名錄》(IOC)最近的改動,以及本委員會覆核英文鳥名的結果:

HK_List_2019-03-27.xls (150.5 KB)

最新的分類或命名的改動如下:
  • Zosterops simplex 由更正了的 Japanese / Mountain White-eye 類別分出來,包含 simplex hainanus 亞種,改名為 Swinhoe's White-eye (暗錄繡眼鳥).
  • 噪鶥由噪鶥屬(Garrulax)分為Ianthocincla屬 和 Pterorhinus屬,香港部份鳥類學名亦作出改動,包括黑喉噪鶥、黑領噪鶥、茅紋草鶥、白頰噪鶥和黑臉噪鶥。
  • 藍翅希鶥的學名由 Minla cyanouroptera 改為 Actinodura cyanouroptera

紀錄委員會主席
賈知行 (Geoff Carey)

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