香港觀鳥會 The Hong Kong Bird Watching Society HKBWS 通 Bulletin訊 黑冠鳽 Malayan Night Heron Summer 2020夏 李錦輝 Benjiman Li • 元朗大棠 Tai Tong, Yuen Long • 10/05/2020 256 蔡司望遠鏡 捕捉怦然心動的一刻 蔡司單筒望遠鏡系列 V Harpia 85 22-65x CONQUEST Gavia 蔡司雙筒望遠鏡系列 蔡司VICTORY系列 蔡司TERRA ED系列 蔡司CONQUEST HD系列 2 通 Bulletin訊 Honorary President Mr. Lam Chiu Ying Summer 2020夏 Executive Committee Chairman Mr. Lau Wai Man, Apache Vice-Chairman Dr. Ng Cho Nam Mr. Michael Kilburn Hon Secretary Mr. Chan Hing Lun, Alan Hon Treasurer Mr. Lau Wai Man, Apache Committee members Mr. John Allcock Mr. Fong Kin Wa, Forrest Ms. Au Chun Yan, Joanne 256 Ms. Yu Sau Ling, Wendy Mr. Wong Chi Chun, Dickson Mr. Jor Chi Keung, George Mr. Man Kuen Yat, Bill Mr. Leung Ka Wing Representative in UK Mr. Richard Stott email: [email protected] Hon. Auditor K. Y. Ng & Company Limited, CPA Hon. Legal Advisor Ms. Eling Lee Membership Affairs Committee Chairman Ms. Au Chun Yan, Joanne Committee members Ms. Lee Wai Chu, Ronley Ms. Chow Chee Leung, Ada Ms. Chim Yuk Ming, Jimmy Mr. Chan Hing Lun, Alan The Hong Kong Bird Watching Society Records Committee Chairman Mr. Geoff Carey Secretary Ms. Ma Ka Wai Committee members Mr. Richard Lewthwaite Mr. Paul Leader Dr. Michael Leven Mr. Yu Yat Tung Mr. Chow Ka Lai, Gary Conservation Committee Society News & Projects Chairman Mr. Mike Kilburn 05 Committee members Dr. Ng Cho Nam Mr. Fong Kin Wa, Forrest Dr. Yip Chi Lap, Beta Mai Po Update WWF-Hong Kong Mr. Wong Chi Chun, Dickson 09 Education and Publicity Committee Committee members Mr. Hung Wai Ming Mr. Lau Wai Man, Apache Mr. Lui Tak Hang, Henry 10 Short but brilliant moments - Cheung Ka Chun Mr. Choi Chung Pak Mr. Fung Po Kei, Robin Ms. Yu Sau Ling, Wendy birdwatching with Beetle (Mr. Cheng Nok Ming) Crested Bulbul Club Chairman Mr. Leung Ka Wing CONTENTS Vice-Chairman (Internal) Mr. Lo Wing Bun Vice-Chairman (External) Mr. Man Kuen Yat, Bill 13 Telford Garden Captain Wong Secretary Ms. Lau Yin Ping HKBWS Asia Conservation Fund Chairman Mr. Lau Wai Man, Apache Committee members Mr. Richard Lewthwaite 15 Hong Kong Bird News Richard Lewthwaite Mr. Yu Yat Tung HKBWS Bird Ringing Committee Chairman Mr. Paul Leader Secretary Ms. Carrie Ma Members Mr. John Allcock Mr. Gary Chow Ms. Katherine Leung Dr. Sung Yik Hei Ms. Tam Yip Shing Mr. Ying Hak King Mr. Yu Yat Tung Scientific Advisor Dr. Caroline Dingle Bird Survey Committee Publisher: The Hong Kong Bird Watching Society Convenor Mr. John Allcock Members Mr. Yu Yat Tung Annual Report Editor Mr. Geoff Welch Mr. John Allcock Co-ordinator: Ronley Lee ([email protected]) Mr. Chow Ka Lai, Gary Mr. Geoff Carey English Editor: John Holmes Staff General Manager Mr. Lo Wai Yan Chinese Editor: Henry Lui Research Manager Mr. Yu Yat Tung Photo Editor: Cherry Wong Project Manager Ms. Yeung Lee Ki, Vicky Assistant Manager Ms Chan Yin Ming, Christina Contributor: WWF-Hong Kong (Education & Eco-art Development) Asst. Conservation Manager Ms. Woo Ming Chuan Cheng Ka Chun Asst. Research Manager Ms. Fong Hoi Ning, Helen Captain Wong Asst. Project Manager Mr. Chung Chun Kit, Johnson Sr. Research Specialist Dr. Pang Chun Chiu Richard Lewthwaite Project Officer Mr. Chung Yun Tak Project Officer Ms. Chau Ka Lai, Katy HKBWS Staff Project Officer Ms. Suen Man King, Maggie Translator: Amy Li Office Address: 7C, V Ga Building, 532 Castle Peak Road, Research Officer Mr. Tse Wai Lun, Ivan Lai Chi Kok, Kowloon, Hong Kong Regional Programme Officer Ms. Bud Wing Sum May Chan Education Officer Ms. Leung Hau Ching, Della Photo: Benjiman Li Telephone: (852) 2377 4387 Education Officer Ms. Lo Pei Lai, Janice Assistant Project Officer Ms. Chan Hoi Ying, Zoey Captain Wong Facsmile: (852) 2314 3687 Assistant Conservation Officer Ms. Wong Suet Mei Design: Contemporary Development Company Email: [email protected] Assistant Research Officer Mr. Li Chung Hoi, Tom Assistant Education Officer Mr. Kwok Tsz Ki, James Administration Assistant Ms. Lai Yee Lan, Fanny 3 www.kowa-prominar.com MADE IN JAPAN SINCE 1946 KOWA FLUORITE CRYSTAL & XD LENSES Kowa fluorite crystal lenses are manufactured using Kowa’s advanced processing technology that has been pioneered and developed over many years. These lenses deliver outstanding colour and resolution properties virtually eliminating all chromatic aberration and producing the ultimate viewing experience. Kowa XD lenses (Extra low dispersion glass) are fluorite rich and when combined with a concave lens containing special dispersion properties reduces the effects of chromatic aberration (colour blur) to a minimum. CHROMATIC ABERRATION - SEE THE DIFFERENCE Fluorite crystal or XD lenses Normal lens Society News and Projects Nature Conservation Management for Long Valley Grassland in Long Valley Since last December, farmland area located managed under the LV project and continuing between Beas River and Shek Sheung River has to provide a stop-over site for migratory birds. been officially returned to government land for the Nevertheless, the handover process faced various creation of a Long Valley Nature Park. However, problems and difficulties (including technical, the project “Nature Conservation Management for communication and negotiation) resulting in the end Long Valley” continues in the farmland area near of farmland management work. Farmlands have Ho Sheung Heung. We began implementing habitat become grasslands. After a series of communication management measures little by little and developing and pushing, farmland inundation work resumed in suitable education activities in that area. At the March and weed removal began in late April. The same time, we will keep monitoring the situation of 2nd season of paddy rice is planned to be planted the construction of Long Valley Nature Park. in July in some of the farmlands. Early this year, construction contractor take over We failed to provide suitable stop-over site for the the management of Long Valley. CA & HKBWS spring migrants this year. We hope they will not kept communicating with CEDD and the contractor, forget about Long Valley. See you next season! hoping for a smooth handover of farmlands 5 Society News and Projects Cherish Fishpond Wetland Wide scenery and the abundant biodiversity of fishpond - Leave No Trace are attractive to bird watcher and photographer. In recent years, many people have visited fishpond areas for seasonal scenery such as flower fields in Fung Lok Wai and “Mars surface” in Tai Sang Wai. Photographers trespassed on a dried fishpond. Many people do not know that fishponds are private areas managed by fish farmer. Some fish farmers also live in the small house next to Unextinguished cigarette butts was the suspected cause of fire. fishponds. A fish farmer in Tai Sang Wai shared an experience with us. One day, he found two new saplings Adorable chicks have attracted more waterbirds will not exist. We appeal planted on his pond bund. He was than a hundred bird-watchers and to visitor to fishpond that we should curious why two trees appeared photographers gathered in fishponds. cherish the environment and respect suddenly. Then he removed the Visitor s leave masks, cigarette butts, the culture of local people. When trees because they obstruct his drink bottles and lunch boxes. Fish we go to countryside for birding, we farming work. Afterwards, he found farmer have to clear the rubbish after should take our litter back home and that the saplings were planted by every holiday. Besides, inappropriate leave no trace. a photographer who wants to take parking has annoyed fish farmer. Too shelter under a tree when visit Tai many cars parking on pond bund Sang Wai for shooting Barn Swallow blocked the road. It caused conflict in the future. Sometimes, fish farmers between fish farmers and visitors. feel helpless in such circumstances. Actively operated fishponds are Recently, more people visited the disappearing from the Northwest New countryside due to the outbreak of Territories. Many fish farmers become the coronavirus. Fishponds became old. More and more fishponds are a hotspot again especially during abandoned. The existing beautiful the bird breeding season. Barn fishponds are valuable. Without the Swallow and Little Ringed Plover management of fish farmers, the have utilised fishpond for breeding. amazing scenery and thousands of 6 Society News and Projects Respect birds, do not disturb! Wildlife thrives as spring is here and summer is approaching. To promote the principle of “Respect birds, do not disturb”, If you notice carefully, you might spot some spring migrants the Society has designed a “Don’t disturb” watermark for passing through Hong Kong, but what’s more, many birds people to use on their photos. Below is the pledge for using start to breed. Luckily enough, you may even get to see the the watermark: whole family with parents bringing up their chicks, which 1. declare that the work was taken with minimum always make people’s heart melt. interference to the birds However, the Society recently noticed many “bird families” 2. remind everyone to respect birds, not to disturb them, are being disturbed by humans during this sensitive period, and not to disclose their nest location including photo-shooting or observation at close distance, 3. demonstrate that awesome photos can also be captured lingering around the active bird nest for a long time, and at a distance from the bird shining strong light towards the nest or bird at night. These activities would scare the parents away, leaving the eggs and chicks unprotected and unattended, or frightening the We hope everyone can appreciate the beauty of the birds in the photo, at the same time spread the chicks so they run around in panic. It is possible that the message of protecting birds and conserving the chicks will starve, dehydrate, or got drowned to death.