HKBWS BBS 香 港 觀 鳥 會 新 聞 組    Discussion Area 討論區    General 一般問題 (Moderators: BBS Moderators, Webcreeper)    Bird Repellent ? 驅鳥裝置? « Previous topic | Next topic » Pages: 1  Reply Send Topic Print    Author  Topic: Bird Repellent ? 驅鳥裝置?  (Read 878 times) BLee BBS Member BBS Senior Member I love snowgoose.     Gender: Posts: 64 Bird Repellent ? 驅鳥裝置? « on: Feb 8th, 2006, 2:13pm » Quote Modify Dear all, Today, I saw an adv from a fax about a selling of a bird warning machine ? one is ultrasonic type HK$x,xxx (effective range : 6500sqft) and another is sonic type HK$1x,xxx (1 hectare) and bird proof (liquid) HK$xxx per gallon.   Is it harmful to birds and environment ? Is it really necessary to have a clear cut between human and natural world ?     « Last Edit: Feb 8th, 2006, 8:45pm by Webcreeper » Logged BLee Fred BBS Member BBS God Birds are fascinating!     Posts: 254 Re: Bird Repellent ? 驅鳥裝置? « Reply #1 on: Feb 9th, 2006, 1:30am » Quote Modify If the products do serve the purposes they claim, intangible harm may be possible in terms of disturbing the normal behaviour of birds.  Taking the argument one step further, they may cause enough detriments to have convened the laws protecting wild birds.   Logged miumiuchee BBS Member BBS Newbie I love bird watching!     Posts: 1 Re: Bird Repellent ? 驅鳥裝置? « Reply #2 on: Feb 12th, 2006, 10:30pm » Quote Modify what is this?  can you give me more infomation?  my email is chee_hmc@yahoo.com.hk   Thanks Logged Pages: 1  Reply Send Topic Print Forum Jump: ----------------------------- Announcement 簡訊通告 -----------------------------  - Membership Affair 會員事務   - Outings / Activities 戶外活動 / 講座   - Projects 項目計劃   - Crested Bulbul Club 紅耳鵯俱樂部 ----------------------------- Discussion Area 討論區 -----------------------------=> General 一般問題   - Conservation 自然保育   - Bird Identification 鳥類辨識   - Birding Reports & Tips 觀鳥報告及心得   - Photo Gallery 相片分享 I   - Photo Gallery 相片分享 II ----------------------------- Special Topics 特別主題 -----------------------------  - Wild Birds & Avian Flu 野鳥與禽流感   - Sustainable Management Scheme in Long Valley 塱原可持續生態管理計劃   - Black-faced Spoonbill 黑臉琵鷺   - Goodbye Penfold 告別彭福   - Tern Conservation 燕鷗保育   - Black-eared Kite 鳶(麻鷹)   - Swifts and Swallows 燕與雨燕   - China Birdwatching Network 中國觀鳥活動網絡   - Winter Altas Survey 冬季鳥類普查   - Nature Conservation Policy 自然保育政策 ----------------------------- Knowledge Sharing 知識分享 -----------------------------  - FAQ 常見問題   - Archive 資料重溫 « Previous topic | Next topic »

香 港 觀 鳥 會
Hong Kong Bird Watching Society

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