HKBWS BBS 香 港 觀 鳥 會 新 聞 組    Discussion Area 討論區    Bird Identification 鳥類辨識 (Moderators: BBS Moderators, Yat-tung YU)    Accipiter ID pls  ???????g? « Previous topic | Next topic » Pages: 1  Reply Send Topic Print    Author  Topic: Accipiter ID pls  ???????g?  (Read 732 times) Owlet-nightjar BBS Member BBS God Hoo-o...chweep!     Posts: 141 Accipiter ID pls  ???????g? « on: Oct 1st, 2004, 7:36pm » Quote Modify Could that be an Eurasian Sparrowhawk (Accipiter nisus) ? Two were seen circling above Fung Lok Wai on the 29th of September 2004.     ?H?XQ?X??L?_??楘?B (I'm afraid the Chinese characters in this message cannot display)     « Last Edit: Oct 1st, 2004, 7:53pm by Owlet-nightjar » Logged Hoo-o.....Hoo-0 Paul Leader Guest Re: Accipiter ID pls  ???????g? « Reply #1 on: Oct 1st, 2004, 8:28pm » Quote Modify Remove It's a Japanese Sparrowhawk (juvenile).  Easiest feature on these pics is the throat pattern - plain except for a thin mesial.  Northern/Eurasian has fine streaks across the entire throat. Logged Koel_Ko BBS Member BBS God I love birds!!     Gender: Posts: 222 Re: Accipiter ID pls  ???????g? « Reply #2 on: Oct 3rd, 2004, 2:39am » Quote Modify Dear Paul, Could you enlighten us as well on how to rule out Besra? I have always been at a loss when it comes to the juveniles. Logged Paul Leader Guest Re: Accipiter ID pls  ???????g? « Reply #3 on: Oct 5th, 2004, 9:29am » Quote Modify Remove Besra is eliminated due to a combination of the tail pattern (dark bars obviously paler than the narrow bars), structure (relatively pointed wings, not very bulging secondaries), throat pattern (narrow mesial) and breast pattern (streaks on the breast not black and thus not obviously constrasting with the brown bars on the belly and flanks).  There is paper in the 1994 HKBR which deals, in detail, with the separation of the two. Logged Uncle_Tall BBS Member BBS God I love bird watching!     Gender: Posts: 163 Re: Accipiter ID pls  ???????g? « Reply #4 on: Oct 6th, 2004, 9:49pm » Quote Modify Dear Paul,   How about the number of "fingers" and wing-tail ratio? Are they reliable?   I got a Japanese reference: No of fingers: Northern Goshawk 6,   European Sparrowhawk 6, wing shorter than 2 x tail Japanese Sparrowhawk 5 (as shown), wing longer than 2 x tail Chinese Sparrowhawk 4   Please kindly enlighten us more. My oldest HKBR is unfortunately 1995. 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 »

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